chore(deps): bump pygithub from 2.5.0 to 2.6.0 (#99)

Bumps [pygithub](https://github.com/pygithub/pygithub) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/pygithub/pygithub/releases)
- [Changelog](https://github.com/PyGithub/PyGithub/blob/main/doc/changes.rst)
- [Commits](PyGithub/PyGithub@v2.5.0...v2.6.0)

---
updated-dependencies:
- dependency-name: pygithub
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -2,4 +2,4 @@
 # For details please see: https://github.com/commit-check/commit-check
 commit-check==0.9.3
 # Interact with the GitHub API.
-PyGithub==2.5.0
+PyGithub==2.6.0