Bump sphinx-autobuild from 2024.4.13 to 2024.4.16 in /requirements

Bumps [sphinx-autobuild](https://github.com/sphinx-doc/sphinx-autobuild) from 2024.4.13 to 2024.4.16.
- [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@2024.04.13...2024.04.16)

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

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

requirements/requirements_doc.txt

@@ -20,7 +20,7 @@ pythreejs==2.4.2
 pyvista==0.43.5
 sphinx_design==0.5.0
 Sphinx==7.1.2
-sphinx-autobuild==2024.4.13
+sphinx-autobuild==2024.4.16
 sphinx-autodoc-typehints==2.0.0
 sphinxcontrib-websupport==1.2.7
 sphinx-copybutton==0.5.2