chore(dependencies): revert pinput version to 6.0.0

- Change pinput version from 6.0.1 to 6.0.0 in pubspec.yaml

Author: fulleni

pubspec.yaml

@@ -73,7 +73,7 @@ dependencies:
       url: https://github.com/flutter-news-app-full-source-code/kv-storage-shared-preferences.git
       ref: v1.0.1
   logging: ^1.3.0
-  pinput: ^6.0.1
+  pinput: ^6.0.0
   rxdart: ^0.28.0
   stream_transform: ^2.1.1
   timeago: ^3.7.1