Mkdocs-git-committers-plugin-2

Add source attribute to authors. Aims to support GitHub and GitLab in mkdocs material. https://github.com/squidfunk/mkdocs-material/issues/6283

- New: add support for GitLab (gitlab.com or self-hosted)
- Moved back from graphql API to REST API, for both GitHub and GitLab
- For GitHub, the plugin will attempt to make unauthenticated REST API call, and warn when rate limit is attained (60 calls/hour/IP address). You will have to provide a token to go beyond the limit and authenticate REST API calls (or for private repositories). For GitLab, a token is mandatory in all cases.

Fix missing dependency: gitpython

BREAKING change! The plugin now uses GitHub GraphQL API to query contributors and stops using the undocumented contributors-list URI.

What's Changed
* Fix 38, 36, 30, 24 - now use GraphQL to fetch authors information by ojacques in https://github.com/ojacques/mkdocs-git-committers-plugin-2/pull/39


**Full Changelog**: https://github.com/ojacques/mkdocs-git-committers-plugin-2/compare/1.2.0...2.0.0

- 31 - New: allow exclude files and paths. See documentation. Thanks Fir121
- 33 - Add lxml dependency. Fix 32. Thanks Guts
- 34 - Improve packaging. Thanks Guts

- Fix error when cache is incomplete
- Fix for Windows users where path was incorrect - 26