[pre-commit.ci] pre-commit autoupdate

[pre-commit-ci[bot]]

updates:

• github.com/PyCQA/flake8: 3.9.2 → 4.0.1

[coveralls]

Pull Request Test Coverage Report for Build 4827149677887488

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.077%

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Totals
Change from base Build 4898280191557632:	0.0%
Covered Lines:	104
Relevant Lines:	108

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💛 - Coveralls