Use new CI action for clang-format

This greatly improves the speed of the clang-format checking on the CI and thus we don't need to run a separate job just for the clang-format check.

.github/workflows/checks.yml

@@ -215,15 +215,10 @@ jobs:
     - name: check building of documentation
       run: python3 -m sphinx -n -N -W -w sphinx.log docs/ tmp/
 
-  clang-format-check:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v1
-
-    - name: clang-format
-      uses: jidicula/[email protected]
+    - name: clang-format check
+      uses: DoozyX/[email protected]
       with:
-        clang-format-version: '16'
-        fallback-style: 'LLVM'
-        # Ignore third-party headers.
-        exclude-regex: 'core/file/(json|nifti[12]).h'
+        source: '.'
+        extensions: 'h,cpp'
+        clangFormatVersion: 16
+        exclude: './core/file/json.h ./core/file/nifti1.h ./core/file/nifti2.h'