workflow: only push new workflow release on push, set specific cmake version, use nproc to use all cores when building.

.github/workflows/build_presets.yml

@@ -16,16 +16,17 @@ jobs:
     - uses: actions/checkout@v3
 
     # fetch latest cmake
-    - uses: lukka/get-cmake@latest
+    - uses: lukka/get-cmake@v3.31.6
 
     - name: Configure CMake
-      run: |
-        cmake --preset ${{ matrix.preset }} -DUSE_VFS_GC=0
+      run: cmake --preset ${{ matrix.preset }}
 
     - name: Build
-      run: cmake --build --preset ${{ matrix.preset }} --parallel 4
+      run: cmake --build --preset ${{ matrix.preset }} --parallel $(nproc)
 
-    - uses: actions/upload-artifact@master
+    - name: Deploy
+      if: ${{ github.event_name != 'pull_request' && github.event.action != 'unassigned' }}
+      uses: actions/upload-artifact@master
       with:
         name: sphaira-${{ matrix.preset }}
         path: build/${{ matrix.preset }}/sphaira.nro