How to delploy Documenter-generated documentation on a project that is not a package?

Hello, I am trying to use Documenter (and Literate) for a github-based Julia course (so, not a package)
When I run the documentation building script locally, I got it without problem and the documentation is built locally, but when I use the GitHub action the only thing I obtain in the gh-pages branch is a index.html that refreshes on dev, and there, in the dev folder, I can find a siteinfo.js file.

What may I do wrong? The repository is GitHub - sylvaticus/IntroSPMLJuliaCourse: Introduction to Scientific Programming and Machine Learning with Julia

The makedoc.jl script - The CI action workflow

And this is the complete action log:

2022-01-21T21:02:12.2135824Z Waiting for a runner to pick up this job...
2022-01-21T21:02:13.0722547Z Job is waiting for a hosted runner to come online.
2022-01-21T21:02:18.1578795Z Job is about to start running on the hosted runner: GitHub Actions 2 (hosted)
2022-01-21T21:02:22.4102691Z Current runner version: '2.286.1'
2022-01-21T21:02:22.4134453Z ##[group]Operating System
2022-01-21T21:02:22.4135130Z Ubuntu
2022-01-21T21:02:22.4135424Z 20.04.3
2022-01-21T21:02:22.4135814Z LTS
2022-01-21T21:02:22.4136180Z ##[endgroup]
2022-01-21T21:02:22.4136519Z ##[group]Virtual Environment
2022-01-21T21:02:22.4136997Z Environment: ubuntu-20.04
2022-01-21T21:02:22.4137400Z Version: 20220111.1
2022-01-21T21:02:22.4137959Z Included Software: https://github.com/actions/virtual-environments/blob/ubuntu20/20220111.1/images/linux/Ubuntu2004-Readme.md
2022-01-21T21:02:22.4138761Z Image Release: https://github.com/actions/virtual-environments/releases/tag/ubuntu20%2F20220111.1
2022-01-21T21:02:22.4139306Z ##[endgroup]
2022-01-21T21:02:22.4139709Z ##[group]Virtual Environment Provisioner
2022-01-21T21:02:22.4140147Z 1.0.0.0-main-20211214-1
2022-01-21T21:02:22.4140544Z ##[endgroup]
2022-01-21T21:02:22.4141625Z ##[group]GITHUB_TOKEN Permissions
2022-01-21T21:02:22.4142349Z Actions: write
2022-01-21T21:02:22.4142946Z Checks: write
2022-01-21T21:02:22.4143328Z Contents: write
2022-01-21T21:02:22.4143689Z Deployments: write
2022-01-21T21:02:22.4144135Z Discussions: write
2022-01-21T21:02:22.4144520Z Issues: write
2022-01-21T21:02:22.4144889Z Metadata: read
2022-01-21T21:02:22.4145257Z Packages: write
2022-01-21T21:02:22.4145573Z Pages: write
2022-01-21T21:02:22.4145980Z PullRequests: write
2022-01-21T21:02:22.4146413Z RepositoryProjects: write
2022-01-21T21:02:22.4146780Z SecurityEvents: write
2022-01-21T21:02:22.4147168Z Statuses: write
2022-01-21T21:02:22.4147485Z ##[endgroup]
2022-01-21T21:02:22.4151666Z Secret source: Actions
2022-01-21T21:02:22.4152270Z Prepare workflow directory
2022-01-21T21:02:22.5135948Z Prepare all required actions
2022-01-21T21:02:22.5355312Z Getting action download info
2022-01-21T21:02:22.7882128Z Download action repository 'actions/checkout@v2' (SHA:ec3a7ce113134d7a93b817d10a8272cb61118579)
2022-01-21T21:02:23.2601020Z Download action repository 'julia-actions/setup-julia@v1' (SHA:ee66464cb7897ffcc5322800f4b18d449794af30)
2022-01-21T21:02:23.8469769Z ##[group]Run actions/checkout@v2
2022-01-21T21:02:23.8470241Z with:
2022-01-21T21:02:23.8470629Z   repository: sylvaticus/IntroSPMLJuliaCourse
2022-01-21T21:02:23.8471314Z   token: ***
2022-01-21T21:02:23.8471619Z   ssh-strict: true
2022-01-21T21:02:23.8471955Z   persist-credentials: true
2022-01-21T21:02:23.8472293Z   clean: true
2022-01-21T21:02:23.8472576Z   fetch-depth: 1
2022-01-21T21:02:23.8472870Z   lfs: false
2022-01-21T21:02:23.8473176Z   submodules: false
2022-01-21T21:02:23.8473470Z ##[endgroup]
2022-01-21T21:02:24.1308323Z Syncing repository: sylvaticus/IntroSPMLJuliaCourse
2022-01-21T21:02:24.1310586Z ##[group]Getting Git version info
2022-01-21T21:02:24.1311297Z Working directory is '/home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse'
2022-01-21T21:02:24.1311984Z [command]/usr/bin/git version
2022-01-21T21:02:24.1435164Z git version 2.34.1
2022-01-21T21:02:24.1458050Z ##[endgroup]
2022-01-21T21:02:24.1468238Z Deleting the contents of '/home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse'
2022-01-21T21:02:24.1473279Z ##[group]Initializing the repository
2022-01-21T21:02:24.1478331Z [command]/usr/bin/git init /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse
2022-01-21T21:02:24.1558787Z hint: Using 'master' as the name for the initial branch. This default branch name
2022-01-21T21:02:24.1559918Z hint: is subject to change. To configure the initial branch name to use in all
2022-01-21T21:02:24.1560423Z hint: of your new repositories, which will suppress this warning, call:
2022-01-21T21:02:24.1560751Z hint: 
2022-01-21T21:02:24.1561292Z hint: 	git config --global init.defaultBranch <name>
2022-01-21T21:02:24.1561590Z hint: 
2022-01-21T21:02:24.1562041Z hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
2022-01-21T21:02:24.1562591Z hint: 'development'. The just-created branch can be renamed via this command:
2022-01-21T21:02:24.1562906Z hint: 
2022-01-21T21:02:24.1563237Z hint: 	git branch -m <name>
2022-01-21T21:02:24.1580254Z Initialized empty Git repository in /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/.git/
2022-01-21T21:02:24.1594081Z [command]/usr/bin/git remote add origin https://github.com/sylvaticus/IntroSPMLJuliaCourse
2022-01-21T21:02:24.1642183Z ##[endgroup]
2022-01-21T21:02:24.1642723Z ##[group]Disabling automatic garbage collection
2022-01-21T21:02:24.1650539Z [command]/usr/bin/git config --local gc.auto 0
2022-01-21T21:02:24.1694770Z ##[endgroup]
2022-01-21T21:02:24.1723240Z ##[group]Setting up auth
2022-01-21T21:02:24.1735619Z [command]/usr/bin/git config --local --name-only --get-regexp core\.sshCommand
2022-01-21T21:02:24.1780059Z [command]/usr/bin/git submodule foreach --recursive git config --local --name-only --get-regexp 'core\.sshCommand' && git config --local --unset-all 'core.sshCommand' || :
2022-01-21T21:02:24.2169917Z [command]/usr/bin/git config --local --name-only --get-regexp http\.https\:\/\/github\.com\/\.extraheader
2022-01-21T21:02:24.2207571Z [command]/usr/bin/git submodule foreach --recursive git config --local --name-only --get-regexp 'http\.https\:\/\/github\.com\/\.extraheader' && git config --local --unset-all 'http.https://github.com/.extraheader' || :
2022-01-21T21:02:24.2506456Z [command]/usr/bin/git config --local http.https://github.com/.extraheader AUTHORIZATION: basic ***
2022-01-21T21:02:24.2566990Z ##[endgroup]
2022-01-21T21:02:24.2568026Z ##[group]Fetching the repository
2022-01-21T21:02:24.2569603Z [command]/usr/bin/git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 origin +e2c9d6bfdd961fe4d243304ae678e7b65d6df862:refs/remotes/origin/main
2022-01-21T21:02:24.5657204Z remote: Enumerating objects: 177, done.        
2022-01-21T21:02:24.5738169Z remote: Counting objects:   0% (1/177)        
2022-01-21T21:02:24.5739137Z remote: Counting objects:   1% (2/177)        
2022-01-21T21:02:24.5789692Z remote: Counting objects: 100% (177/177)        
2022-01-21T21:02:24.5790128Z remote: Counting objects: 100% (177/177), done.        
2022-01-21T21:02:24.5790595Z remote: Compressing objects:   0% (1/162)        
2022-01-21T21:02:24.5791026Z remote: Compressing objects:   1% (2/162)           
2022-01-21T21:02:24.5831831Z remote: Compressing objects:  99% (161/162)        
2022-01-21T21:02:24.5832143Z remote: Compressing objects: 100% (162/162)        
2022-01-21T21:02:24.5832460Z remote: Compressing objects: 100% (162/162), done.        
2022-01-21T21:02:24.5833459Z Receiving objects:   0% (1/177)
2022-01-21T21:02:24.5834889Z Receiving objects:   1% (2/177)
2022-01-21T21:02:25.5092385Z Receiving objects:  99% (176/177), 13.36 MiB | 26.26 MiB/s
2022-01-21T21:02:25.5092904Z Receiving objects: 100% (177/177), 13.36 MiB | 26.26 MiB/s
2022-01-21T21:02:25.5093831Z Receiving objects: 100% (177/177), 22.66 MiB | 24.40 MiB/s, done.
2022-01-21T21:02:25.5099590Z Resolving deltas:   0% (0/6)
2022-01-21T21:02:25.5100814Z Resolving deltas:  16% (1/6)
2022-01-21T21:02:25.5103137Z Resolving deltas:  33% (2/6)
2022-01-21T21:02:25.5104392Z Resolving deltas:  50% (3/6)
2022-01-21T21:02:25.5104839Z Resolving deltas:  66% (4/6)
2022-01-21T21:02:25.5105200Z Resolving deltas:  83% (5/6)
2022-01-21T21:02:25.5106279Z Resolving deltas: 100% (6/6)
2022-01-21T21:02:25.5106576Z Resolving deltas: 100% (6/6), done.
2022-01-21T21:02:25.5959514Z From https://github.com/sylvaticus/IntroSPMLJuliaCourse
2022-01-21T21:02:25.5960854Z  * [new ref]         e2c9d6bfdd961fe4d243304ae678e7b65d6df862 -> origin/main
2022-01-21T21:02:25.5988698Z ##[endgroup]
2022-01-21T21:02:25.5989883Z ##[group]Determining the checkout info
2022-01-21T21:02:25.5990934Z ##[endgroup]
2022-01-21T21:02:25.5991698Z ##[group]Checking out the ref
2022-01-21T21:02:25.5996234Z [command]/usr/bin/git checkout --progress --force -B main refs/remotes/origin/main
2022-01-21T21:02:25.8375778Z Switched to a new branch 'main'
2022-01-21T21:02:25.8384933Z Branch 'main' set up to track remote branch 'main' from 'origin'.
2022-01-21T21:02:25.8406785Z ##[endgroup]
2022-01-21T21:02:25.8456014Z [command]/usr/bin/git log -1 --format='%H'
2022-01-21T21:02:25.8491519Z 'e2c9d6bfdd961fe4d243304ae678e7b65d6df862'
2022-01-21T21:02:25.8694766Z ##[group]Run julia-actions/setup-julia@v1
2022-01-21T21:02:25.8695062Z with:
2022-01-21T21:02:25.8695265Z   version: 1.7
2022-01-21T21:02:25.8695497Z   arch: x64
2022-01-21T21:02:25.8695748Z   show-versioninfo: false
2022-01-21T21:02:25.8695985Z ##[endgroup]
2022-01-21T21:02:27.9665489Z [command]tar xf /home/runner/work/_temp/d0466d7f-78dc-46c1-afe5-b39dfa504377 --strip-components=1 -C julia-x64-1.7.1-PIwCGR
2022-01-21T21:02:33.5521630Z [command]julia --version
2022-01-21T21:02:33.5954405Z julia version 1.7.1
2022-01-21T21:02:33.6116569Z ##[group]Run julia -t 4 --project=. -e 'using Pkg; Pkg.instantiate()'
2022-01-21T21:02:33.6117066Z e[36;1mjulia -t 4 --project=. -e 'using Pkg; Pkg.instantiate()'e[0m
2022-01-21T21:02:33.6175780Z shell: /usr/bin/bash -e {0}
2022-01-21T21:02:33.6176071Z ##[endgroup]
2022-01-21T21:02:34.3735874Z   Installing known registries into `~/.julia`
2022-01-21T21:02:36.2535341Z    Installed x265_jll ───────────────────── v3.5.0+0
2022-01-21T21:02:36.2564712Z    Installed GR_jll ─────────────────────── v0.62.0+0
2022-01-21T21:02:36.2567651Z    Installed libfdk_aac_jll ─────────────── v2.0.2+0
....
2022-01-21T21:02:39.1994188Z    Installed InverseFunctions ───────────── v0.1.2
2022-01-21T21:02:39.2012766Z    Installed DocStringExtensions ────────── v0.8.6
2022-01-21T21:02:39.2232098Z    Installed Crayons ────────────────────── v4.0.4
2022-01-21T21:02:39.2673187Z ERROR: /tmp/jl_lFbUOd222HDt
2022-01-21T21:02:39.2674219Z Can not open the file as archive
2022-01-21T21:02:39.2675233Z 
2022-01-21T21:02:39.3194188Z ┌ Warning: failed to extract archive downloaded from https://pkg.julialang.org/package/3b182d85-2403-5c21-9c21-1e1f0cc25472/344bf40dcab1073aca04aa0df4fb092f920e4011
2022-01-21T21:02:39.3195932Z └ @ Pkg.Operations /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:497
2022-01-21T21:02:39.4891061Z    Installed ScientificTypesBase ────────── v2.3.0
2022-01-21T21:02:39.5207413Z    Installed Adapt ──────────────────────── v3.3.1
2022-01-21T21:02:39.5491478Z    Installed StableRNGs ─────────────────── v1.0.0
...
2022-01-21T21:02:40.0655251Z    Installed DensityInterface ───────────── v0.4.0
2022-01-21T21:02:40.1574486Z    Installed CUDA ───────────────────────── v3.5.0
2022-01-21T21:02:57.1517969Z     Building Conda ────→ `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/299304989a5e6473d985212c28928899c74e9421/build.log`
2022-01-21T21:02:58.2105227Z     Building PyCall ───→ `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/4ba3651d33ef76e24fef6a598b63ffd1c5e1cd17/build.log`
2022-01-21T21:03:04.7388495Z     Building GR ───────→ `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/30f2b340c2fff8410d89bfcdc9c0a6dd661ac5f7/build.log`
2022-01-21T21:03:07.0790518Z     Building BetaML ───→ `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/aa706c86ae79ede395fc4a2f9287a45efa56196d/build.log`
2022-01-21T21:03:07.5712895Z     Building Random123 → `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/0e8b146557ad1c6deb1367655e052276690e71a3/build.log`
2022-01-21T21:03:08.6660918Z Precompiling project...
2022-01-21T21:03:09.2740844Z e[32m  ✓ e[39me[90mScientificTypesBasee[39m
2022-01-21T21:03:09.9122365Z e[32m  ✓ e[39me[90mChangesOfVariablese[39m
...
2022-01-21T21:05:53.7506061Z e[32m  ✓ e[39me[90mNNlibCUDAe[39m
2022-01-21T21:06:05.5519249Z e[32m  ✓ e[39mFlux
2022-01-21T21:06:33.7923295Z e[32m  ✓ e[39mPlots
2022-01-21T21:06:33.8198190Z   190 dependencies successfully precompiled in 206 seconds (4 already precompiled)
2022-01-21T21:06:33.8418158Z ##[group]Run julia -t 4 --project=. makedoc.jl
2022-01-21T21:06:33.8418524Z e[36;1mjulia -t 4 --project=. makedoc.jle[0m
2022-01-21T21:06:33.8472992Z shell: /usr/bin/bash -e {0}
2022-01-21T21:06:33.8473285Z env:
2022-01-21T21:06:33.8473987Z   GITHUB_TOKEN: ***
2022-01-21T21:06:33.8782120Z   DOCUMENTER_KEY: ***
2022-01-21T21:06:33.8782448Z   GKSwstype: 100
2022-01-21T21:06:33.8782709Z ##[endgroup]
2022-01-21T21:06:34.1952297Z   Activating project at `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse`
2022-01-21T21:06:34.5531089Z Starting literating tutorials (.jl --> .md)...
2022-01-21T21:06:35.6003572Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0101-basic_syntax.jl
2022-01-21T21:06:35.6077186Z   Activating project at `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming`
2022-01-21T21:06:37.5161203Z    Installed LogExpFunctions ──── v0.3.6
2022-01-21T21:06:37.5190776Z    Installed StatsFuns ────────── v0.9.14
2022-01-21T21:06:37.5320556Z    Installed Preferences ──────── v1.2.3
2022-01-21T21:06:37.5351447Z    Installed SpecialFunctions ─── v2.0.0
2022-01-21T21:06:37.5651058Z    Installed DataStructures ───── v0.18.11
2022-01-21T21:06:37.6047278Z    Installed ChainRulesCore ───── v1.11.5
2022-01-21T21:06:37.6105907Z    Installed StatsAPI ─────────── v1.2.0
2022-01-21T21:06:37.6308621Z    Installed Compat ───────────── v3.41.0
2022-01-21T21:06:37.6316345Z    Installed Distributions ────── v0.25.40
2022-01-21T21:06:37.6322425Z    Installed ChangesOfVariables ─ v0.1.2
2022-01-21T21:06:37.6329846Z    Installed StatsBase ────────── v0.33.14
2022-01-21T21:06:37.6660301Z    Installed JLLWrappers ──────── v1.4.0
2022-01-21T21:06:38.8235307Z Precompiling project...
2022-01-21T21:06:39.2454225Z e[32m  ✓ e[39me[90mStatsAPIe[39m
2022-01-21T21:06:39.4127518Z e[32m  ✓ e[39me[90mPreferencese[39m
2022-01-21T21:06:39.7741515Z e[32m  ✓ e[39me[90mCompate[39m
2022-01-21T21:06:39.7953723Z e[32m  ✓ e[39me[90mJLLWrapperse[39m
2022-01-21T21:06:41.1827131Z e[32m  ✓ e[39me[90mOpenSpecFun_jlle[39m
2022-01-21T21:06:41.5887532Z e[32m  ✓ e[39me[90mChainRulesCoree[39m
2022-01-21T21:06:42.4561223Z e[32m  ✓ e[39me[90mRmath_jlle[39m
2022-01-21T21:06:42.5327653Z e[32m  ✓ e[39me[90mChangesOfVariablese[39m
2022-01-21T21:06:43.1069900Z e[32m  ✓ e[39me[90mDataStructurese[39m
2022-01-21T21:06:43.7047712Z e[32m  ✓ e[39me[90mRmathe[39m
2022-01-21T21:06:44.3958540Z e[32m  ✓ e[39me[90mQuadGKe[39m
2022-01-21T21:06:44.4138127Z e[32m  ✓ e[39me[90mSortingAlgorithmse[39m
2022-01-21T21:06:44.7105542Z e[32m  ✓ e[39me[90mLogExpFunctionse[39m
2022-01-21T21:06:46.8484114Z e[32m  ✓ e[39me[90mStatsBasee[39m
2022-01-21T21:06:48.7266606Z e[32m  ✓ e[39me[90mSpecialFunctionse[39m
2022-01-21T21:06:50.8569114Z e[32m  ✓ e[39me[90mStatsFunse[39m
2022-01-21T21:06:56.2274164Z e[32m  ✓ e[39mDistributions
2022-01-21T21:06:56.2451915Z   17 dependencies successfully precompiled in 18 seconds (17 already precompiled)
2022-01-21T21:06:56.3477473Z i is 1
2022-01-21T21:06:56.3478236Z i is 2
2022-01-21T21:06:56.3478660Z i is 3
2022-01-21T21:06:56.3479163Z Hello world!
2022-01-21T21:06:56.6968218Z hello
2022-01-21T21:06:56.6969106Z a
2022-01-21T21:06:56.6970234Z multiline
2022-01-21T21:06:56.6970892Z string
2022-01-21T21:06:58.4222999Z Test Summary:                                                                                                                         |
2022-01-21T21:06:58.4483268Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0101-basic_syntax.jl | No tests
2022-01-21T21:06:58.5503153Z [ Info: generating markdown page from `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0101-basic_syntax.jl`
2022-01-21T21:06:59.4775671Z [ Info: writing result to `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0101-basic_syntax.md`
2022-01-21T21:06:59.4885598Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0102-types_and_objects.jl
2022-01-21T21:06:59.4933362Z   Activating project at `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming`
2022-01-21T21:06:59.6579240Z [ Info: generating markdown page from `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0102-types_and_objects.jl`
2022-01-21T21:06:59.6579824Z Test Summary:                                                                                                                              |
2022-01-21T21:06:59.6580546Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0102-types_and_objects.jl | No tests
2022-01-21T21:06:59.6597155Z [ Info: writing result to `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0102-types_and_objects.md`
2022-01-21T21:06:59.6598059Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0103-predefined_types.jl
2022-01-21T21:06:59.6831916Z   Activating project at `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming`
2022-01-21T21:07:15.3914881Z 1 - 10
2022-01-21T21:07:15.3984796Z 2 - 20
2022-01-21T21:07:15.3985258Z 3 - 30
2022-01-21T21:07:15.7864758Z ("Marc", 'M', 25)
2022-01-21T21:07:15.8052023Z ("Anne", 'F', 20)
2022-01-21T21:07:16.9652944Z [1, 2, 3, 4]
2022-01-21T21:07:16.9758184Z [5, 6, 7, 8]
2022-01-21T21:07:16.9758450Z [9, 10, 11, 12]
2022-01-21T21:07:17.7539274Z [1 13; 4 16; 7 19; 10 22]
2022-01-21T21:07:17.7669906Z [2 14; 5 17; 8 20; 11 23]
2022-01-21T21:07:17.7670225Z [3 15; 6 18; 9 21; 12 24]
2022-01-21T21:07:23.4541272Z a - 1
2022-01-21T21:07:23.4647078Z b - 2.5
2022-01-21T21:07:24.1503881Z a is 1
2022-01-21T21:07:24.1644137Z b is 2
2022-01-21T21:07:24.1644717Z c is 3
2022-01-21T21:07:26.3615371Z [ Info: generating markdown page from `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0103-predefined_types.jl`
2022-01-21T21:07:26.3616395Z Test Summary:                                                                                                                             |
2022-01-21T21:07:26.3617669Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0103-predefined_types.jl | No tests
2022-01-21T21:07:26.3643234Z [ Info: writing result to `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0103-predefined_types.md`
2022-01-21T21:07:26.3644763Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0104-custom_types.jl
2022-01-21T21:07:26.3662321Z [ Info: generating markdown page from `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0104-custom_types.jl`
2022-01-21T21:07:26.3663294Z Test Summary:                                                                                                                         |
2022-01-21T21:07:26.3664734Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0104-custom_types.jl | No tests
2022-01-21T21:07:26.3675475Z [ Info: writing result to `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/01_-_JULIA1_-_Basic_Julia_programming/0104-custom_types.md`
2022-01-21T21:07:26.3676325Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/02_-_JULIA2_-_Scientific_programming_with_Julia/0201-WranglingData.jl
2022-01-21T21:07:26.3693915Z   Activating project at `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse`
2022-01-21T21:07:26.3760290Z [ Info: generating markdown page from `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/02_-_JULIA2_-_Scientific_programming_with_Julia/0201-WranglingData.jl`
2022-01-21T21:07:26.3761186Z Test Summary:                                                                                                                                    |
2022-01-21T21:07:26.3761955Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/02_-_JULIA2_-_Scientific_programming_with_Julia/0201-WranglingData.jl | No tests
2022-01-21T21:07:26.3964489Z [ Info: writing result to `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/02_-_JULIA2_-_Scientific_programming_with_Julia/0201-WranglingData.md`
2022-01-21T21:07:26.3965900Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/00_-_KOM_-_Kickoff_meeting/0000-KOMeeting.jl
2022-01-21T21:07:26.3982206Z [ Info: generating markdown page from `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/00_-_KOM_-_Kickoff_meeting/0000-KOMeeting.jl`
2022-01-21T21:07:26.3982747Z Test Summary:                                                                                                           |
2022-01-21T21:07:26.3983434Z /home/runner/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/00_-_KOM_-_Kickoff_meeting/0000-KOMeeting.jl | No tests
2022-01-21T21:07:26.3994285Z [ Info: writing result to `~/work/IntroSPMLJuliaCourse/IntroSPMLJuliaCourse/lessonsSources/00_-_KOM_-_Kickoff_meeting/0000-KOMeeting.md`
2022-01-21T21:07:26.3994751Z Starting making the documentation...
2022-01-21T21:07:29.2416889Z ┌ Warning: Unknown keywords:
2022-01-21T21:07:29.2418664Z │ 
2022-01-21T21:07:29.2419097Z │   analytics = G-JYKX8QY5JW
2022-01-21T21:07:29.2419841Z └ @ Documenter.Utilities ~/.julia/packages/Documenter/qdbx6/src/Utilities/Utilities.jl:177
2022-01-21T21:07:30.2495662Z [ Info: SetupBuildDirectory: setting up build directory.
2022-01-21T21:07:32.0146396Z [ Info: Doctest: running doctests.
2022-01-21T21:07:33.7751210Z [ Info: ExpandTemplates: expanding markdown templates.
2022-01-21T21:07:52.3151892Z [ Info: CrossReferences: building cross-references.
2022-01-21T21:07:54.2192463Z [ Info: CheckDocument: running document checks.
2022-01-21T21:07:55.0346929Z [ Info: Populate: populating indices.
2022-01-21T21:07:57.0324400Z [ Info: RenderDocument: rendering document.
2022-01-21T21:07:58.8839866Z [ Info: HTMLWriter: rendering HTML pages.
2022-01-21T21:08:07.0469743Z Starting deploying the documentation...
2022-01-21T21:08:10.1321743Z ┌ Info: Deployment criteria for deploying devbranch build from GitHub Actions:
2022-01-21T21:08:10.1322613Z │ - ✔ ENV["GITHUB_REPOSITORY"]="sylvaticus/IntroSPMLJuliaCourse" occurs in repo="github.com/sylvaticus/IntroSPMLJuliaCourse.git"
2022-01-21T21:08:10.1323231Z │ - ✔ ENV["GITHUB_EVENT_NAME"]="push" is "push"
2022-01-21T21:08:10.1323684Z │ - ✔ ENV["GITHUB_REF"] matches devbranch="main"
2022-01-21T21:08:10.1324120Z │ - ✔ ENV["GITHUB_ACTOR"] exists and is non-empty
2022-01-21T21:08:10.1324576Z │ - ✔ ENV["DOCUMENTER_KEY"] exists and is non-empty
2022-01-21T21:08:10.1324945Z └ Deploying: ✔
2022-01-21T21:08:13.4017574Z hint: Using 'master' as the name for the initial branch. This default branch name
2022-01-21T21:08:13.4018024Z hint: is subject to change. To configure the initial branch name to use in all
2022-01-21T21:08:13.4018510Z hint: of your new repositories, which will suppress this warning, call:
2022-01-21T21:08:13.4018824Z hint: 
2022-01-21T21:08:13.4019202Z hint: 	git config --global init.defaultBranch <name>
2022-01-21T21:08:13.4019490Z hint: 
2022-01-21T21:08:13.4019903Z hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
2022-01-21T21:08:13.4020412Z hint: 'development'. The just-created branch can be renamed via this command:
2022-01-21T21:08:13.4020731Z hint: 
2022-01-21T21:08:13.4021017Z hint: 	git branch -m <name>
2022-01-21T21:08:13.4034755Z Initialized empty Git repository in /tmp/jl_VZMBoF/.git/
2022-01-21T21:08:13.6462235Z Failed to add the RSA host key for IP address '192.30.255.112' to the list of known hosts (/home/runner/.ssh/known_hosts).
2022-01-21T21:08:16.3327277Z From github.com:sylvaticus/IntroSPMLJuliaCourse
2022-01-21T21:08:16.3328585Z  * [new branch]      gh-pages   -> upstream/gh-pages
2022-01-21T21:08:16.3329038Z  * [new branch]      main       -> upstream/main
2022-01-21T21:08:16.3386613Z Switched to a new branch 'gh-pages'
2022-01-21T21:08:16.3389058Z Branch 'gh-pages' set up to track remote branch 'gh-pages' from 'upstream'.
2022-01-21T21:08:16.3415927Z rm 'dev/siteinfo.js'
2022-01-21T21:08:16.9235654Z Post job cleanup.
2022-01-21T21:08:17.0565388Z [command]/usr/bin/git version
2022-01-21T21:08:17.0623007Z git version 2.34.1
2022-01-21T21:08:17.0671549Z [command]/usr/bin/git config --local --name-only --get-regexp core\.sshCommand
2022-01-21T21:08:17.0718667Z [command]/usr/bin/git submodule foreach --recursive git config --local --name-only --get-regexp 'core\.sshCommand' && git config --local --unset-all 'core.sshCommand' || :
2022-01-21T21:08:17.1005167Z [command]/usr/bin/git config --local --name-only --get-regexp http\.https\:\/\/github\.com\/\.extraheader
2022-01-21T21:08:17.1028538Z http.https://github.com/.extraheader
2022-01-21T21:08:17.1041174Z [command]/usr/bin/git config --local --unset-all http.https://github.com/.extraheader
2022-01-21T21:08:17.1088992Z [command]/usr/bin/git submodule foreach --recursive git config --local --name-only --get-regexp 'http\.https\:\/\/github\.com\/\.extraheader' && git config --local --unset-all 'http.https://github.com/.extraheader' || :
2022-01-21T21:08:17.1660833Z Cleaning up orphan processes

Solved by applying the keyword target = "buildedDoc" on the deploydocs call.
Just one note… the targetkeyword argument in deploydocs is called build on the makedocs call… maybe they should be the same…