Many corporate proxies actually work over HTTP, not HTTPS; your communication is still secure because proxied https traffic uses the CONNECT method and the TLS handshake is still handled between the client and upstream server (i.e. without proxy interception).
So unless your employer has told you otherwise, it’s worth checking whether setting the https_proxy=http://proxy.osmp.ru:3128 works for you.
PS. If you have issues with command-line applications and proxies, this project may be for you.