Roll Dart SDK from a1b67665b3a3 to 9c74645153ca (1 revision) (flutter/engine#48648)

https://dart.googlesource.com/sdk.git/+log/a1b67665b3a3..9c74645153ca

2023-12-04 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.3.0-190.0.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,matanl@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

DEPS

@@ -59,7 +59,7 @@ 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': 'a1b67665b3a3fa881dba32b8481ded5cda47a14c',
+  'dart_revision': '9c74645153ca3a4c9723908b5921be512cb3405e',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

engine/src/flutter/ci/licenses_golden/licenses_dart

@@ -1,4 +1,4 @@
-Signature: 94f19de1be780d6d3ad218cf342d6bd2
+Signature: 80e7477229d5a2ba0700b20483c13b2f
 
 ====================================================================================================
 LIBRARY: dart