[dependabot] Chore: Bump sphinx-autoapi from 3.2.0 to 3.2.1 (#514)

Bumps [sphinx-autoapi](https://github.com/readthedocs/sphinx-autoapi) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/readthedocs/sphinx-autoapi/releases)
- [Changelog](https://github.com/readthedocs/sphinx-autoapi/blob/main/CHANGELOG.rst)
- [Commits](readthedocs/sphinx-autoapi@v3.2.0...v3.2.1)

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

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

docs/requirements.txt

@@ -1,5 +1,5 @@
 sphinx<8,>=6
-sphinx-autoapi==3.2.0
+sphinx-autoapi==3.2.1
 sphinx-autodoc-typehints
 sphinx-rtd-theme==2.0.0
 tox