Build(deps-dev): Bump the patch group with 2 updates

Bumps the patch group with 2 updates: [mkdocstrings](https://github.com/mkdocstrings/mkdocstrings) and [mypy](https://github.com/python/mypy).


Updates `mkdocstrings` from 1.0.3 to 1.0.4
- [Release notes](https://github.com/mkdocstrings/mkdocstrings/releases)
- [Changelog](https://github.com/mkdocstrings/mkdocstrings/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/mkdocstrings@1.0.3...1.0.4)

Updates `mypy` from 1.20.0 to 1.20.2
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.20.0...v1.20.2)

---
updated-dependencies:
- dependency-name: mkdocstrings
  dependency-version: 1.0.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: patch
- dependency-name: mypy
  dependency-version: 1.20.2
  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

@@ -70,12 +70,12 @@ dev-mkdocs = [
   "mkdocs-literate-nav == 0.6.3",
   "mkdocs-macros-plugin == 1.5.0",
   "mkdocs-material == 9.7.6",
-  "mkdocstrings[python] == 1.0.3",
+  "mkdocstrings[python] == 1.0.4",
   "mkdocstrings-python == 2.0.3",
   "frequenz-repo-config[lib] == 0.16.0",
 ]
 dev-mypy = [
-  "mypy == 1.20.0",
+  "mypy == 1.20.2",
   "grpc-stubs == 1.53.0.6",
   "types-Markdown == 3.10.2.20260211",
   "types-protobuf == 6.32.1.20260221",