Bump ruff from 0.8.0 to 0.8.1

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.8.0 to 0.8.1.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.8.0...0.8.1)

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

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

requirements-optional.txt

@@ -2,7 +2,7 @@
 pytest-cov==6.0.0
 redis==5.2.0
 pre-commit==4.0.1
-ruff==0.8.0
+ruff==0.8.1
 
 # For generating documentation.
 sphinx==8.1.3