💚 Bootstrap macOS builds

Author: trickypr

.github/workflows/alpha.yml

@@ -224,6 +224,12 @@ jobs:
       - name: Import
         run: yarn imp
 
+      - name: Bootstrap
+        run: |
+          cd engine
+          ./mach --no-interactive bootstrap --application-choice browser
+          cd ..
+
       - name: Gluon build
         run: yarn build --verbose