Bump sphinx-autobuild in the dependencies group

Bumps the dependencies group with 1 update: [sphinx-autobuild](https://github.com/sphinx-doc/sphinx-autobuild).


Updates `sphinx-autobuild` from 2024.2.4 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@2024.02.04...2024.09.03)

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

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