Update dependency flake8 to v7

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
flake8 (changelog)	==6.1.0 -> ==7.1.1

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Release Notes

pycqa/flake8 (flake8)

v7.1.1

Compare Source

v7.1.0

Compare Source

v7.0.0

Compare Source

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