Bump sphinx from 8.1.3 to 8.2.0

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.1.3 to 8.2.0.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.1.3...v8.2.0)

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

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

requirements-optional.txt

@@ -5,7 +5,7 @@ pre-commit==4.1.0
 ruff==0.9.7
 
 # For generating documentation.
-sphinx==8.1.3
+sphinx==8.2.0
 sphinx-autoapi==3.6.0
 
 # For 'manage' interactive shell