Bump sphinx from 7.1.2 to 7.4.7 (#943)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.1.2 to 7.4.7.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/v7.4.7/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.1.2...v7.4.7)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-version: 7.4.7
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -33,7 +33,7 @@ certifi = ">=2022.5.18,<2026.0.0"
 black = "^24.8.0"
 mypy = "^1.18"
 types-urllib3 = "^1.26.25"
-Sphinx = "^7.1.2"
+Sphinx = "^7.4.7"
 sphinx-rtd-theme = "^3.0.2"
 # keep this in sync with docs/requirements.txt for readthedocs.org
 sphinx-autodoc-typehints = "^2.0.1"