build(deps): bump sphinx-autodoc-typehints from 2.1.1 to 2.2.0 in /docs

Bumps [sphinx-autodoc-typehints](https://github.com/tox-dev/sphinx-autodoc-typehints) from 2.1.1 to 2.2.0.
- [Release notes](https://github.com/tox-dev/sphinx-autodoc-typehints/releases)
- [Changelog](https://github.com/tox-dev/sphinx-autodoc-typehints/blob/main/CHANGELOG.md)
- [Commits](tox-dev/sphinx-autodoc-typehints@2.1.1...2.2.0)

---
updated-dependencies:
- dependency-name: sphinx-autodoc-typehints
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

docs/requirements.txt

@@ -1,4 +1,4 @@
 sphinx==7.3.7
 furo==2024.5.6
-sphinx-autodoc-typehints==2.1.1
+sphinx-autodoc-typehints==2.2.0
 kloppy==3.14.0