build(deps): bump sphinx in /Documentation/requirements-min

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 5.1.1 to 6.1.3.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v5.1.1...v6.1.3)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Documentation/requirements-min/requirements.txt

@@ -1,4 +1,4 @@
-Sphinx==5.1.1
+Sphinx==6.1.3
 sphinx-autobuild==2021.3.14
 
 # Custom theme, forked from Read the Docs