Feature request

Support running against repositories on Forgejo/Gitea

Motivation

I would love to be able to run pr-agent against my repositories hosted on my own personal Forgejo server. I imagine other users of pr-agent (especially people self-hosting it!) might also have some of their code stored on servers running Gitea or Forgejo

(the only related issue I could find is #465 )

I will probably try to add it myself, but figured I should add an issue for visibility.