chore(deps-dev): bump flake8 from 7.1.0 to 7.3.0

Bumps [flake8](https://github.com/pycqa/flake8) from 7.1.0 to 7.3.0.
- [Commits](PyCQA/flake8@7.1.0...7.3.0)

---
updated-dependencies:
- dependency-name: flake8
  dependency-version: 7.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -1,6 +1,6 @@
 sphinx==8.0.0
 black==25.9.0
-flake8==7.1.0
+flake8==7.3.0
 isort==5.12.0
 mypy==1.8.0
 pylint==3.2.6