Bump pygithub from 2.5.0 to 2.6.1

Bumps [pygithub](https://github.com/pygithub/pygithub) from 2.5.0 to 2.6.1.
- [Release notes](https://github.com/pygithub/pygithub/releases)
- [Changelog](https://github.com/PyGithub/PyGithub/blob/v2.6.1/doc/changes.rst)
- [Commits](PyGithub/PyGithub@v2.5.0...v2.6.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -6,6 +6,6 @@ python-gitlab==5.6.0
 rdflib==7.1.3
 requests==2.32.3
 SPARQLTransformer==2.4.0
-PyGithub==2.5.0
+PyGithub==2.6.1
 gunicorn==23.0.0; sys_platform!="win32"
 waitress>=1.4.2; sys_platform=="win32"