Bump ruff from 0.14.10 to 0.15.4

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.14.10 to 0.15.4.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.14.10...0.15.4)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements-tests.txt

@@ -7,5 +7,5 @@ pytest
 pytest-asyncio==0.24.0
 pytest-cov
 pytest-django
-ruff ==0.14.10
+ruff ==0.15.4
 python-jose==3.4.0