[dependabot] Chore: Bump flake8 from 3.8.3 to 7.0.0

Bumps [flake8](https://github.com/pycqa/flake8) from 3.8.3 to 7.0.0.
- [Commits](PyCQA/flake8@3.8.3...7.0.0)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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