Bump mkdocs from 1.3.0 to 1.3.1 (#1783)

Bump mkdocs from 1.3.0 to 1.3.1 (#1783)

Bumps [mkdocs](https://github.com/mkdocs/mkdocs) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/mkdocs/mkdocs/releases)
- [Commits](https://github.com/mkdocs/mkdocs/compare/1.3.0...1.3.1)

---
updated-dependencies:
- dependency-name: mkdocs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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