Bump sphinx from 7.4.5 to 7.4.6 (#855)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.4.5 to 7.4.6.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.4.5...v7.4.6)

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

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

Author: dependabot[bot]

docs/requirements.txt

@@ -74,7 +74,7 @@ requests==2.32.3
     #   sphinx
 snowballstemmer==2.2.0
     # via sphinx
-sphinx==7.4.5
+sphinx==7.4.6
     # via
     #   -r docs/requirements.in
     #   sphinx-rtd-theme