check if amalgamate file is sync with codebase

.github/workflows/amalgamate_check.yml

@@ -0,0 +1,34 @@
+name: amalgamate-check
+
+on: [push]
+
+env:
+  BUILD_TYPE: Debug
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: 'recursive'
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DEV_DEV=ON
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+
+    - name: Amalgamate Check
+      run: |
+        if git diff --exit-code ev.h; then
+        else
+          echo "ev.h is not sync with source code."
+          exit 1
+        fi
+        if git diff --exit-code ev.c; then
+        else
+          echo "ev.c is not sync with source code."
+          exit 1
+        fi