Build(deps): Bump sphinx from 7.1.1 to 7.1.2

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.1.1 to 7.1.2.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v7.1.1...v7.1.2)

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

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

requirements/doc.txt

@@ -1,3 +1,3 @@
 aiohttp-theme==0.1.6
-sphinx==7.1.1
+sphinx==7.1.2
 sphinxcontrib-spelling==8.0.0; platform_system!="Windows"