[pre-commit.ci] pre-commit autoupdate

[pre-commit-ci[bot]]

updates:

• github.com/pre-commit/pre-commit-hooks: v2.3.0 → v4.0.1
• github.com/psf/black: 21.9b0 → 21.10b0
• https://gitlab.com/pycqa/flake8 → https://github.com/PyCQA/flake8
• github.com/PyCQA/flake8: 3.7.9 → 4.0.1

[codecov[bot]]

Codecov Report

Merging #770 (c682517) into master (4f29996) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #770   +/-   ##
=======================================
  Coverage   90.30%   90.30%           
=======================================
  Files           9        9           
  Lines         712      712           
  Branches      111      111           
=======================================
  Hits          643      643           
  Misses         45       45           
  Partials       24       24           

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