test universal flag

package.json

@@ -56,7 +56,14 @@
       "entitlements": "build/entitlements.mac.plist",
       "entitlementsInherit": "build/entitlements.mac.plist",
       "notarize": false,
-      "arch": ["universal"]
+      "target": [
+        {
+          "target": "mas",
+          "arch": [
+            "universal"
+          ]
+        }
+      ]
     },
     "icon": "build/icon.icns",
     "appId": "openbuilds.control",