Roll Dart SDK from f470eaaf6e6d to 38c43a01a51e (1 revision) (#52365)

https://dart.googlesource.com/sdk.git/+log/f470eaaf6e6d..38c43a01a51e

2024-04-24 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.5.0-96.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter-engine
Please CC dart-vm-team@google.com,jimgraham@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter Engine: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -62,7 +62,7 @@ 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': 'f470eaaf6e6d925ded8f9b16e8a662d00c144929',
+  'dart_revision': '38c43a01a51ed8351761da3de87fcfb55485b209',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py