Bump flake8 from 5.0.4 to 7.0.0

Bumps [flake8](https://github.com/pycqa/flake8) from 5.0.4 to 7.0.0.
- [Commits](PyCQA/flake8@5.0.4...7.0.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements-dev.txt

@@ -2,4 +2,4 @@ twine==4.0.1
 wheel==0.41.2
 pytest==7.4.2
 pytest-cov==4.0.0
-flake8==5.0.4
+flake8==7.0.0