Gitlab/Bitbucket/Gitea support

[irgolic]

Originally requested in irgolic/AutoPR-template#7

I made an effort to write AutoPR pretty orthogonally to Github. To support gitlab, the following changes need to be made:

• a new entrypoint file should be added, similar to gh_actions_entrypoint.py. They should probably be placed in their own autopr/entrypoints/ directory.
• a new PublishService subclass should be added in autopr/services/publish_service.py
• a way to parse gitlab's events should be added as an EventService subclass.
• currently main.py is hardcoded for github, in that it instantiates a GithubPublishService and GithubEventService. Also, it takes a github_token environment variable.

I don't personally have a use for this right now, but the changes should be pretty straightforward if anyone using gitlab wants to pick it up. That said, I'm glossing over the actual gitlab <=> entrypoint integration, and assuming that gitlab-ci provides an event object similar to github actions.

[zxzzz8]

I have been looking for a while now for an AI i can have in my local gitea for creating pull requests based on the issues i open etc,
and i also only want to work locally with my own GPU for security/privacy reasons.

so did i get to the right place?
from the name of the project and all i assumed it is generally what im looking for,
so is all this needs now is just support for gitea in order to fit my use case?
or are there other aspects that are different?
like this tool isn't made to run completely locally w/o internet access for security for example?

im completely new to AI so excuse me if my question is a bit of a noob question.