update dio to dio: ^5.5.0+1

update  dio to  dio: ^5.5.0+1

flutter/lib/pages/crisp_page.dart

@@ -1,6 +1,6 @@
 import 'package:crisp/crisp.dart';
 import 'package:flutter/widgets.dart';
-import 'package:sail/constant/app_strings.dart';
+import 'package:uuvpn/constant/app_strings.dart';
 
 class CrispPage extends StatefulWidget {
   const CrispPage({Key? key}) : super(key: key);