Cache Mac Qt

Author: SuperDude88

.github/workflows/build_mac.yml

@@ -48,6 +48,8 @@ jobs:
           host: 'mac'
           target: 'desktop'
           arch: 'clang_64'
+          cache: true
+          cache-key-prefix: install-qt-${{ env.QT_VERSION }}-action
 
       - name: Set Debug Flags
         if: inputs.build_type == 'Debug'