CI: (deps): Bump the flake8 group in /ci with 3 updates

Bumps the flake8 group in /ci with 3 updates: [flake8](https://github.com/pycqa/flake8), [pyflakes](https://github.com/PyCQA/pyflakes) and [flake8-requirements](https://github.com/Arkq/flake8-requirements).


Updates `flake8` from 6.1.0 to 7.0.0
- [Commits](PyCQA/flake8@6.1.0...7.0.0)

Updates `pyflakes` from 3.1.0 to 3.2.0
- [Changelog](https://github.com/PyCQA/pyflakes/blob/main/NEWS.rst)
- [Commits](PyCQA/pyflakes@3.1.0...3.2.0)

Updates `flake8-requirements` from 2.0.1 to 2.0.2
- [Commits](arkq/flake8-requirements@v2.0.1...v2.0.2)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: flake8
- dependency-name: pyflakes
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: flake8
- dependency-name: flake8-requirements
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: flake8
...

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

ci/linting_requirements.txt

@@ -1,14 +1,14 @@
 ruff==0.1.8
 
-flake8==6.1.0
+flake8==7.0.0
 pycodestyle==2.11.1
-pyflakes==3.1.0
+pyflakes==3.2.0
 
 flake8-continuation==1.0.5
 flake8-copyright==0.2.4
 flake8-isort==6.1.1
 isort==5.13.2
-flake8-requirements==2.0.1
+flake8-requirements==2.0.2
 
 flake8-rst-docstrings==0.3.0