Bump mkdocstrings-python

Bumps the patch group with 1 update in the / directory: [mkdocstrings-python](https://github.com/mkdocstrings/python).


Updates `mkdocstrings-python` from 2.0.8 to 2.0.9
- [Release notes](https://github.com/mkdocstrings/python/releases)
- [Changelog](https://github.com/mkdocstrings/python/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/python@2.0.8...2.0.9)

---
updated-dependencies:
- dependency-name: mkdocstrings-python
  dependency-version: 2.0.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -71,7 +71,7 @@ dev-mkdocs = [
   "mkdocs-macros-plugin == 1.5.0",
   "mkdocs-material == 9.7.7",
   "mkdocstrings[python] == 1.0.7",
-  "mkdocstrings-python == 2.0.8",
+  "mkdocstrings-python == 2.0.9",
   "frequenz-repo-config[lib] == 0.19.0",
 ]
 dev-mypy = [