PSA: GitHub Dependabot now supports Julia

How to configure it if I want dependabot to only manage the root Project.toml and ignore the docs/Project.toml and test/Project.toml?
I am getting tons of little PRs for docs/ and test/ and I don’t want to bother with compat for those subdirectories:
https://github.com/JuliaArrays/LazyGrids.jl/pulls
I asked copilot for help and it strongly suggested using exclude-paths which I tried but gave an dependabot error. And I tried to find documentation on the allowable syntax but all I could find was the general dependabot stuff, not the Julia-specific aspects.