Bump pylint from 2.9.0 to 2.9.1 (#136)

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.9.0 to 2.9.1.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/main/ChangeLog)
- [Commits](pylint-dev/pylint@v2.9.0...v2.9.1)

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

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