docs: update defacult version

Author: shenxianpeng

README.md

@@ -154,10 +154,10 @@ Use -header-filter=.* to display errors from all non-system headers. Use -system
   rev: v1.1.0
   hooks:
     - id: clang-format
-      args: [--style=file, --version=18]
+      args: [--style=file, --version=20]
       files: ^(src|include)/.*\.(cpp|cc|cxx|h|hpp)$ # Limits to specific dirs and file types
     - id: clang-tidy
-      args: [--checks=.clang-tidy, --version=18]
+      args: [--checks=.clang-tidy, --version=20]
       files: ^(src|include)/.*\.(cpp|cc|cxx|h|hpp)$
 ```
 

testing/pre-commit-config-verbose.yaml

@@ -3,9 +3,9 @@ repos:
     rev: HEAD
     hooks:
       - id: clang-format
-        args: [--style=file, --version=16, --verbose]  # test with verbose output
+        args: [--style=file, --version=21, --verbose]  # test with verbose output
   - repo: .
     rev: HEAD
     hooks:
       - id: clang-format
-        args: [--style=file, --version=16, -v]  # test with verbose output
+        args: [--style=file, --version=21, -v]  # test with verbose output

testing/pre-commit-config-version.yaml

@@ -34,3 +34,10 @@ repos:
         args: [--style=file, --version=20]
       - id: clang-tidy
         args: [--checks=.clang-tidy, --version=20]
+  - repo: .
+    rev: HEAD
+    hooks:
+      - id: clang-format
+        args: [--style=file, --version=21]
+      - id: clang-tidy
+        args: [--checks=.clang-tidy, --version=21]