[upd] pypi: Bump sphinx from 7.3.7 to 7.4.7

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.3.7 to 7.4.7.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](https://github.com/sphinx-doc/sphinx/compare/v7.3.7...v7.4.7)

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

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

requirements-dev.txt

@@ -7,7 +7,7 @@ splinter==0.21.0
 selenium==4.23.1
 Pallets-Sphinx-Themes==2.1.3
 Sphinx<=7.1.2; python_version == '3.8'
-Sphinx==7.3.7; python_version > '3.8'
+Sphinx==7.4.7; python_version > '3.8'
 sphinx-issues==4.1.0
 sphinx-jinja==2.0.2
 sphinx-tabs==3.4.5