Bump ruff from 0.5.4 to 0.5.6

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.5.4 to 0.5.6.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.5.4...0.5.6)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/dev-requirements.txt

@@ -137,7 +137,7 @@ requests==2.32.3
     #   -c requirements/requirements.txt
     #   -c requirements/test-requirements.txt
     #   sphinx
-ruff==0.5.4
+ruff==0.5.6
     # via -r requirements/dev-requirements.in
 six==1.16.0
     # via