Bump ruff from 0.8.4 to 0.9.4

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.8.4 to 0.9.4.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.8.4...0.9.4)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements-tests.txt

@@ -5,4 +5,4 @@ pytest
 pytest-asyncio==0.24.0
 pytest-cov
 pytest-django
-ruff ==0.8.4
+ruff ==0.9.4