Bump mkdocstrings from 0.28.3 to 0.29.1

Bumps [mkdocstrings](https://github.com/mkdocstrings/mkdocstrings) from 0.28.3 to 0.29.1.
- [Release notes](https://github.com/mkdocstrings/mkdocstrings/releases)
- [Changelog](https://github.com/mkdocstrings/mkdocstrings/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/mkdocstrings@0.28.3...0.29.1)

---
updated-dependencies:
- dependency-name: mkdocstrings
  dependency-version: 0.29.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]