Bump checkstyle from 8.44 to 9.1

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 8.44 to 9.1.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](https://github.com/checkstyle/checkstyle/compare/checkstyle-8.44...checkstyle-9.1

)

---
updated-dependencies:
- dependency-name: com.puppycrawl.tools:checkstyle
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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