[pre-commit.ci] pre-commit autoupdate

[pre-commit-ci[bot]]

updates:

• github.com/psf/black: 21.9b0 → 21.10b0

[codecov[bot]]

Codecov Report

Merging #24 (85be664) into main (35ac1bf) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##              main       #24   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            3         3           
  Lines           83        83           
=========================================
  Hits            83        83           

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