Roll Dart SDK from 231a9ea to e077676 (1 revision) (#33165)

Author: skia-flutter-autoroll

DEPS

@@ -45,7 +45,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/main/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '231a9ea32a5469c2ab4ad5f44a15e6bd29dc70df',
+  'dart_revision': 'e077676b38ecf321d6984f5aa8df752f2485153a',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py