Update pubspec.yaml.twig

Author: nohli

templates/flutter/pubspec.yaml.twig

@@ -12,10 +12,10 @@ dependencies:
   flutter:
     sdk: flutter
   cookie_jar: ^3.0.1
-  device_info_plus: ^6.0.0
+  device_info_plus: ^7.0.0
   flutter_web_auth_2: ^1.1.2
   http: ^0.13.5
-  package_info_plus: ^2.0.0
+  package_info_plus: ^3.0.0
   path_provider: ^2.0.11
   web_socket_channel: ^2.2.0