chore: require min shared_preferences v2.3.0

Author: Vinzent03

packages/supabase_flutter/pubspec.yaml

@@ -20,7 +20,7 @@ dependencies:
   supabase: 2.8.0
   url_launcher: ^6.1.2
   path_provider: ^2.0.0
-  shared_preferences: ^2.0.0
+  shared_preferences: ^2.3.0
   logging: ^1.2.0
   web: '>=0.5.0 <2.0.0'