[pre-commit.ci] pre-commit autoupdate

[pre-commit-ci]

updates:

• github.com/nbQA-dev/nbQA: 1.2.3 → 1.3.1

[codecov]

Codecov Report

Merging #227 (815a058) into master (0f57baf) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #227   +/-   ##
=======================================
  Coverage   96.69%   96.69%           
=======================================
  Files          10       10           
  Lines        3569     3569           
  Branches      766      766           
=======================================
  Hits         3451     3451           
  Misses         67       67           
  Partials       51       51           

Flag	Coverage Δ
unittests	96.69% <ø> (ø)

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