Split Setup and build

.github/workflows/build.yml

@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: "recursive"  
-      - name: Build
+      - name: Setup
         run: |
           curl -O https://sdk.lunarg.com/sdk/download/latest/mac/vulkan_sdk.dmg  
           hdiutil attach vulkan_sdk.dmg 
@@ -59,5 +59,7 @@ jobs:
           cd ../../
           ls
           brew --prefix libomp 
+      - name: Build
+        run: |
           cmake -G "Xcode" -DOpenMP_C_FLAGS=/usr/local/opt/libomp -DOpenMP_omp_LIBRARY=/usr/local/opt/libomp -DOpenMP_CXX_FOUND=/usr/local/opt/libomp
           cmake --build .