chore: adjust sdk version

Author: Vinzent03

packages/supabase/example/pubspec.yaml

@@ -5,7 +5,7 @@ version: 1.0.0
 publish_to: none
 
 environment:
-  sdk: ^3.9.0
+  sdk: '>=3.3.0 <4.0.0'
 
 # Add regular dependencies here.
 dependencies:
@@ -15,5 +15,5 @@ dependencies:
 dev_dependencies:
   build_runner: ^2.4.15
   build_web_compilers: ^4.1.6
-  lints: ^6.0.0
+  lints: ^5.0.0