build(deps-dev): bump sphinx-autobuild from 2024.10.3 to 2025.8.25

Bumps [sphinx-autobuild](https://github.com/sphinx-doc/sphinx-autobuild) from 2024.10.3 to 2025.8.25.
- [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@2024.10.03...2025.08.25)

---
updated-dependencies:
- dependency-name: sphinx-autobuild
  dependency-version: 2025.8.25
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]