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Add pyupgrade to pre-commit (#5638)

* Add pyupgrade to pre-commit

* Remove unused imports

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
C
Christian Clauss committed
477cc3fe597fd931c742700284016b937c778fe1
Parent: 70368a7
Committed by GitHub <noreply@github.com> on 10/28/2021, 2:45:59 PM