Bump sphinx from 7.0.1 to 7.1.1 in /misc/requirements (#671)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.0.1 to 7.1.1.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v7.0.1...v7.1.1)

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

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

misc/requirements/requirements_docs.txt

@@ -1,3 +1,3 @@
-sphinx==7.0.1
+sphinx==7.1.1
 pydata-sphinx-theme==0.13.3
 sphinxcontrib-images==0.9.4