Bump ruff from 0.6.5 to 0.6.8

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.6.5 to 0.6.8.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.6.5...0.6.8)

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

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

requirements-dev.txt

@@ -201,7 +201,7 @@ requests==2.32.3
     # via
     #   azure-core
     #   coreapi
-ruff==0.6.5
+ruff==0.6.8
     # via Liionsden (pyproject.toml)
 six==1.16.0
     # via