Fix Lint

Author: chandrabezzo

example/lib/main.dart

@@ -7,7 +7,7 @@ void main() {
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) => const MaterialApp(home: MainPage());

example/lib/main_page.dart

@@ -7,7 +7,7 @@ import 'package:flutter_avo_inspector/flutter_avo_inspector.dart';
 import 'track_event_json_request.dart';
 
 class MainPage extends StatefulWidget {
-  const MainPage({Key? key}) : super(key: key);
+  const MainPage({super.key});
 
   @override
   State<MainPage> createState() => _MainPageState();

example/pubspec.lock

@@ -92,7 +92,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.2.0"
+    version: "1.3.0"
   flutter_lints:
     dependency: "direct dev"
     description: