[pre-commit.ci] Pre-commit autoupdate. (#156)

updates:
- [github.com/pre-commit/pre-commit-hooks: v5.0.0 → v6.0.0](https://github.com/pre-commit/pre-commit-hooks/compare/v5.0.0...v6.0.0)
- [github.com/pre-commit/mirrors-clang-format: v20.1.7 → v21.1.2](https://github.com/pre-commit/mirrors-clang-format/compare/v20.1.7...v21.1.2)

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

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v5.0.0
+    rev: v6.0.0
     hooks:
       - id: trailing-whitespace
         exclude: '^(third-party|licenses)/.*$'
@@ -11,7 +11,7 @@ repos:
       - id: check-case-conflict
         exclude: '^(third-party|licenses)/.*$'
   - repo: https://github.com/pre-commit/mirrors-clang-format
-    rev: v20.1.7
+    rev: v21.1.2
     hooks:
     - id: clang-format
       'types_or': [c++, c]