Roll Dart SDK from d679a4c98193 to 9b9ca1ff944d (1 revision) (#53975)

https://dart.googlesource.com/sdk.git/+log/d679a4c98193..9b9ca1ff944d

2024-07-17 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.6.0-52.0.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,zra@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': 'd679a4c98193700a649ff17216e23083c6661e7f',
+  'dart_revision': '9b9ca1ff944d22f75468ee6381ad8648f7a1d6d5',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

sky/packages/sky_engine/LICENSE

@@ -31926,7 +31926,7 @@ 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/+/d679a4c98193700a649ff17216e23083c6661e7f
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/9b9ca1ff944d22f75468ee6381ad8648f7a1d6d5
 /third_party/fallback_root_certificates/
 
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