Build: Bump mkdocstrings from 0.21.2 to 0.22.0 in /python (#7727)

Bumps [mkdocstrings](https://github.com/mkdocstrings/mkdocstrings) from 0.21.2 to 0.22.0.
- [Release notes](https://github.com/mkdocstrings/mkdocstrings/releases)
- [Changelog](https://github.com/mkdocstrings/mkdocstrings/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mkdocstrings/mkdocstrings/compare/0.21.2...0.22.0)

---
updated-dependencies:
- dependency-name: mkdocstrings
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/python/mkdocs/requirements.txt b/python/mkdocs/requirements.txt
index 1002c51..7b84857 100644
--- a/python/mkdocs/requirements.txt
+++ b/python/mkdocs/requirements.txt
@@ -18,7 +18,7 @@
 mkdocs==1.4.3
 griffe==0.29.0
 jinja2==3.1.2
-mkdocstrings==0.21.2
+mkdocstrings==0.22.0
 mkdocstrings-python==1.0.0
 mkdocs-literate-nav==0.6.0
 mkdocs-autorefs==0.4.1