Bump mkdocstrings from 0.18.0 to 0.18.1 (#660)

Bumps [mkdocstrings](https://github.com/mkdocstrings/mkdocstrings) from 0.18.0 to 0.18.1.
- [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/0.18.0...0.18.1)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -110,7 +110,7 @@ types-toml = "^0.10.7"
 mkdocs = "^1.2.3"
 mkdocs-material = ">=8.1.2,<8.3"
 mkdocs-material-extensions = "^1.0.3"
-mkdocstrings = {version = "==0.18", extras = ["python"]}
+mkdocstrings = {version = "==0.18.1", extras = ["python"]}
 mkdocs-gen-files = "^0.3.4"
 mkdocs-literate-nav = "^0.4.1"
 mkdocs-section-index = "^0.3.4"