Add format check

.github/workflows/format-check.yaml

@@ -0,0 +1,21 @@
+name: PR validation
+on:
+  push:
+    branches: ['master']
+
+  pull_request:
+    branches: ['master']
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+  formatting-check:
+    name: Formatting Check
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run clang-format style check for C/C++/Protobuf programs.
+      uses: jidicula/[email protected]
+      with:
+        clang-format-version: '11'