Update dependency flutter_bloc_pattern to v3

Author: renovate[bot]

pubspec.yaml

@@ -39,7 +39,7 @@ dependencies:
   cupertino_icons: ^1.0.2
   rxdart_ext: ^0.2.9
   dart_either: ^1.0.0
-  flutter_bloc_pattern: ^2.3.0
+  flutter_bloc_pattern: ^3.0.0
   flutter_provider: ^2.1.0
   built_collection: ^5.1.1
   disposebag: ^1.5.1