Require Dart SDK 2.14, because of using APIs. (flutter#3468)

scheglov · nploi · commit 0b60f04202e7 · 2023-07-16T20:54:50.000+07:00
diff --git a/script/tool/pubspec.yaml b/script/tool/pubspec.yaml
@@ -30,4 +30,4 @@ dev_dependencies:
   mockito: ^5.0.7
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.14.0 <3.0.0'
