Flutter 3.22.x Support (#7) (#8)

Author: rickypid

example/pubspec.yaml

@@ -5,7 +5,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: '>=2.19.0 <4.0.0'
+  sdk: '>=3.4.1 <4.0.0'
 
 dependencies:
   cupertino_icons: ^1.0.6

pubspec.yaml

@@ -7,8 +7,8 @@ homepage: https://flutter-supabase-chat-core.insideapp.it
 repository: https://github.com/insideapp-srl/flutter_supabase_chat_core
 
 environment:
-  sdk: '>=3.0.0 <4.0.0'
-  flutter: '>=3.0.0'
+  sdk: '>=3.4.1 <4.0.0'
+  flutter: '>=3.22.0'
 
 dependencies:
   flutter: