Bump sphinx-autobuild from 2024.4.16 to 2024.9.3 in /requirements (#56)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/docs.txt

@@ -1,4 +1,4 @@
-sphinx-autobuild==2024.4.16
+sphinx-autobuild==2024.9.3
 sphinx~=7.3.7
 sphinx-copybutton~=0.5.2
 furo==2024.5.6