chore: pre-commit autoupdate (#514)

<!--pre-commit.ci start-->
updates:
- [github.com/astral-sh/ruff-pre-commit: v0.6.7 →
v0.6.8](astral-sh/ruff-pre-commit@v0.6.7...v0.6.8)
<!--pre-commit.ci end-->

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -18,7 +18,7 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.6.7
+  rev: v0.6.8
   hooks:
   - id: ruff
     args: [--fix]