[pre-commit.ci] Pre-commit autoupdate.

updates:
- [github.com/pre-commit/mirrors-clang-format: v21.1.2 → v21.1.8](pre-commit/mirrors-clang-format@v21.1.2...v21.1.8)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -7,7 +7,7 @@ repos:
       - id: check-merge-conflict
       - id: check-case-conflict
   - repo: https://github.com/pre-commit/mirrors-clang-format
-    rev: v21.1.2
+    rev: v21.1.8
     hooks:
     - id: clang-format
       'types_or': [c++, c]