Bump flake8 from 6.0.0 to 7.0.0 (#164)

Bumps [flake8](https://github.com/pycqa/flake8) from 6.0.0 to 7.0.0.
- [Commits](PyCQA/flake8@6.0.0...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements_dev.txt

@@ -1,4 +1,4 @@
-flake8==6.0.0
+flake8==7.0.0
 pylint==3.1.1
 pytest==7.2.1
 pytest-cov==5.0.0