Roll Dart SDK from 9c9a333c496c to 67ce49b905f7 (2 revisions) (#57013)

https://dart.googlesource.com/sdk.git/+log/9c9a333c496c..67ce49b905f7

2024-12-06 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.7.0-221.0.dev
2024-12-06 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.7.0-220.0.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 bdero@google.com,dart-vm-team@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

@@ -56,7 +56,7 @@ 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': '9c9a333c496c81d9da5593f7b7b7ad18ffd47983',
+  'dart_revision': '67ce49b905f76c3b6563cae20704a811905f7be5',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/licenses_dart

@@ -1,4 +1,4 @@
-Signature: e8ded71d356b24956e436610bedf344b
+Signature: fea0b323063957889a3c2906daac10f7
 
 ====================================================================================================
 LIBRARY: dart
@@ -4807,7 +4807,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/56bbedca60f93176335183129230b9552fc33183
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/67ce49b905f76c3b6563cae20704a811905f7be5
 /third_party/fallback_root_certificates/
 
 ====================================================================================================

sky/packages/sky_engine/LICENSE

@@ -32269,7 +32269,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/9c9a333c496c81d9da5593f7b7b7ad18ffd47983
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/67ce49b905f76c3b6563cae20704a811905f7be5
 /third_party/fallback_root_certificates/
 
 --------------------------------------------------------------------------------