feat: enable embroider-optimized scenario

Author: aklkv

showcase/config/ember-try.js

@@ -77,7 +77,7 @@ module.exports = async function () {
         },
       },
       embroiderSafe(),
-      embroiderOptimized({ allowedToFail: true }),
+      embroiderOptimized(),
     ],
   };
 };