Ogr

- Please check
[COMPATIBILITY.md](https://github.com/packit/ogr/blob/main/COMPATIBILITY.md)
to see which methods are implemented for particular services.
- Ogr now supports reacting to a comment (issue, pull request) with a given
reaction. It's possible to obtain the reactions and delete them (only when
reaction is added by using ogr API). (636)

- Getting `conclusion` from GitHub's Check Run no longer raises an exception when
it's not defined, it returns None instead now. (618)
- When using parsing functions, `pkgs.[stg.]fedoraproject.org` are mapped to
PagureService. (620)
- Fix inconsistency of `merge_commit_sha` for GitLab's PRs. (626)

- Implement description get/set property in projects. (600)
- Support using the merge ref instead of the head ref in a pull request. (601)
- Implement patch property in GithubPullRequest and GitlabPullRequest. (613, 614)

- Add a function for setting assignees of issues, by [KPostOffice](https://github.com/KPostOffice), [#589](https://github.com/packit-service/ogr/pull/589)
- 'make check' is now aligned with other Packit projects, by [bcrocker15](https://github.com/bcrocker15), [#593](https://github.com/packit-service/ogr/pull/593)
- Implement support for GitHub [check runs](https://docs.github.com/en/rest/reference/checks#check-runs), by [mfocko](https://github.com/mfocko), [#592](https://github.com/packit-service/ogr/pull/592)

- Add support for listing of projects in GitLab and Github (by our external
contributor [abkosar](https://github.com/abkosar))

- Fixed problems with imports from 'gitlab' modules.