chore(deps): bump sphinx-autobuild from 2024.4.16 to 2024.9.3

Bumps [sphinx-autobuild](https://github.com/sphinx-doc/sphinx-autobuild) from 2024.4.16 to 2024.9.3.
- [Release notes](https://github.com/sphinx-doc/sphinx-autobuild/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx-autobuild/blob/main/NEWS.rst)
- [Commits](sphinx-doc/sphinx-autobuild@2024.04.16...2024.09.03)

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

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

requirements-tests.txt

@@ -2,5 +2,5 @@
 mypy==1.11.2
 pymarkdownlnt==0.9.22
 ruff==0.6.3
-sphinx-autobuild==2024.4.16
+sphinx-autobuild==2024.9.3
 yamllint==1.35.1