Update dependency test/flake8 to v7

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
test/flake8 (changelog)	<5 -> <8

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Release Notes

pycqa/flake8 (test/flake8)

### [`v7.0.0`](https://togithub.com/pycqa/flake8/compare/6.1.0...7.0.0) [Compare Source](https://togithub.com/pycqa/flake8/compare/6.1.0...7.0.0) ### [`v6.1.0`](https://togithub.com/pycqa/flake8/compare/6.0.0...6.1.0) [Compare Source](https://togithub.com/pycqa/flake8/compare/6.0.0...6.1.0) ### [`v6.0.0`](https://togithub.com/pycqa/flake8/compare/5.0.4...6.0.0) [Compare Source](https://togithub.com/pycqa/flake8/compare/5.0.4...6.0.0) ### [`v5.0.4`](https://togithub.com/pycqa/flake8/compare/5.0.3...5.0.4) [Compare Source](https://togithub.com/pycqa/flake8/compare/5.0.3...5.0.4) ### [`v5.0.3`](https://togithub.com/pycqa/flake8/compare/5.0.2...5.0.3) [Compare Source](https://togithub.com/pycqa/flake8/compare/5.0.2...5.0.3) ### [`v5.0.2`](https://togithub.com/pycqa/flake8/compare/5.0.1...5.0.2) [Compare Source](https://togithub.com/pycqa/flake8/compare/5.0.1...5.0.2) ### [`v5.0.1`](https://togithub.com/pycqa/flake8/compare/5.0.0...5.0.1) [Compare Source](https://togithub.com/pycqa/flake8/compare/5.0.0...5.0.1) ### [`v5.0.0`](https://togithub.com/pycqa/flake8/compare/4.0.1...5.0.0) [Compare Source](https://togithub.com/pycqa/flake8/compare/4.0.1...5.0.0)

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Configuration

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