Bump sphinx from 5.3.0 to 7.3.7

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 5.3.0 to 7.3.7.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v5.3.0...v7.3.7)

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

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

requirements-dev.txt

@@ -1,5 +1,5 @@
 setuptools==69.2.0
-sphinx==5.3.0
+sphinx==7.3.7
 sphinx_rtd_theme==2.0.0
 coverage==7.4.4
 flake8==6.0.0