Don't tweak the SDK version.

Author: lrhn

pkgs/characters/pubspec.yaml

@@ -10,8 +10,8 @@ topics:
   - unicode
 
 environment:
-  sdk: ^3.8.0
+  sdk: ^3.4.0
 
 dev_dependencies:
-  dart_flutter_team_lints: ^3.5.0
-  test: ^1.26.0
+  dart_flutter_team_lints: ^3.1.0
+  test: ^1.16.0