build in parallel jobs

.github/workflows/cmake.yml

@@ -34,7 +34,7 @@ jobs:
           git clone https://github.com/fuzziqersoftware/phosg.git
           cd phosg
           cmake .
-          make
+          make -j $(nproc)
           sudo make install
 
       - name: Install resource_file
@@ -43,14 +43,14 @@ jobs:
           git clone https://github.com/fuzziqersoftware/resource_dasm.git
           cd resource_dasm
           cmake .
-          make
+          make -j $(nproc)
           sudo make install
 
       - name: Configure CMake
         run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
 
       - name: Build
-        run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+        run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j $(nproc)
 
       - name: Test
         working-directory: ${{github.workspace}}/build