ci: add clang-format process into ci.yml

.github/workflows/ci.yml

@@ -28,9 +28,9 @@ jobs:
       - name: Install Clang-Format manually
         run: brew install clang-format
 
-      - name: Run Clang-Format on git diff
+      - name: Find modified files and format
         run: |
-          git diff --name-only --diff-filter=d | grep -E '\.(cpp|cc|h|hpp)$' | xargs clang-format -i -style=file
+          git diff --name-only --diff-filter=d ${{ github.event.before }} ${{ github.sha }} | grep '\.\(cpp\|cc\|h\|hpp\)$' | xargs clang-format -i
 
       - name: Commit changes
         uses: stefanzweifel/git-auto-commit-action@v4