Python dependency: Bump sphinx from 7.3.7 to 7.4.1 in /tools

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.3.7 to 7.4.1.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.3.7...v7.4.1)

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

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

tools/requirements.txt

@@ -1,5 +1,5 @@
 requests>=2.21.0
 requests[security]>=2.21.0
 safety>=1.9.0
-Sphinx==7.3.7
+Sphinx==7.4.1
 sphinxcontrib-youtube==1.4.1