Update pubspec.yaml

Signed-off-by: fulleni <[email protected]>

Author: fulleni

pubspec.yaml

@@ -4,7 +4,7 @@ version: 0.35.0
 publish_to: none
 repository: https://github.com/headlines-toolkit/ht-main
 environment:
-  sdk: ^3.5.0
+  sdk: ^3.7.0
 
 dependencies:
   bloc: ^9.0.0