Bump mkdocstrings[python] in the mkdocstrings group

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


Updates `mkdocstrings[python]` from 0.29.1 to 0.30.0
- [Release notes](https://github.com/mkdocstrings/mkdocstrings/releases)
- [Changelog](https://github.com/mkdocstrings/mkdocstrings/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/mkdocstrings@0.29.1...0.30.0)

---
updated-dependencies:
- dependency-name: mkdocstrings[python]
  dependency-version: 0.30.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mkdocstrings
...

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

Author: dependabot[bot]

pyproject.toml

@@ -78,7 +78,7 @@ dev-mkdocs = [
   "frequenz-api-dispatch == 1.0.0-rc2",
   "mkdocs-macros-plugin == 1.3.7",
   "mkdocs-material == 9.6.15",
-  "mkdocstrings[python] == 0.29.1",
+  "mkdocstrings[python] == 0.30.0",
   "frequenz-repo-config[lib] == 0.13.5",
 ]
 dev-mypy = [