Update pre-commit to 2.21.0#475

pyup-bot wants to merge 2 commits intodevelopinfOpen/cookiecutter-python-project:developfrom

pyup-update-pre-commit-2.6.0-to-2.21.0infOpen/cookiecutter-python-project:pyup-update-pre-commit-2.6.0-to-2.21.0Copy head branch name to clipboard