Deps update, utilize super.key (#1265)

* Deps update, utilize `super.key`

* `flutter format`

game_template/lib/main.dart

@@ -189,8 +189,8 @@ class MyApp extends StatelessWidget {
     required this.inAppPurchaseController,
     required this.adsController,
     required this.gamesServicesController,
-    Key? key,
-  }) : super(key: key);
+    super.key,
+  });
 
   @override
   Widget build(BuildContext context) {