#403: Introduce pyupgrade pre-commit hook, Remove dev dep tools

Moulrequested to merge
403_pyupgrade into dev
  • Introduce pyupgrade pre-commit hook
  • Apply pyupgrade
  • Introduce pyupgrade job
  • CONTRIBUTING: Add pyupgrade
  • Bump pre-commit tools versions
  • Remove black, isort and pre-commit dev dependencies

Close #403 (closed).

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