Bump ruff from 0.6.7 to 0.6.8

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.6.7 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@0.6.7...0.6.8)

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

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

pyproject.toml

@@ -81,7 +81,7 @@ docs = [
 ]
 lint = [
     "flake8>=6.0",
-    "ruff==0.6.7",
+    "ruff==0.6.8",
     "mypy==1.11.1",
     "sphinx-lint>=0.9",
     "types-colorama==0.4.15.20240311",