[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 1359339549

• 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 100.0%

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Totals
Change from base Build 1281674951:	0.0%
Covered Lines:	168
Relevant Lines:	168

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💛 - Coveralls