Roll Dart SDK from 4789a86f4d3f to be9c98daf9df (1 revision) (#57124)

https://dart.googlesource.com/sdk.git/+log/4789a86f4d3f..be9c98daf9df

2024-12-11 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.7.0-236.0.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,jonahwilliams@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
https://dart.googlesource.com/external/github.com/flutter/engine/+/23c4966e568ed6a6f62b3f35173ad83562443620
diff --git a/DEPS b/DEPS
index 531b1a4..6d60ef4 100644
--- a/DEPS
+++ b/DEPS
@@ -256,7 +256,7 @@
 deps = {
   'engine/src': 'https://github.com/flutter/buildroot.git' + '@' + 'cc9bcddf1524812c80ef741191d5db7469e705de',
 
-  'engine/src/flutter': Var('flutter_git') + '/mirrors/engine' + '@' + '7941d7801b0826b21d82f84bc0d160fe599918c1',
+  'engine/src/flutter': Var('flutter_git') + '/mirrors/engine' + '@' + '23c4966e568ed6a6f62b3f35173ad83562443620',
 
   'engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '7cac23ae8a5e331c44df4b4f8ea4540f038b2781',
 
diff --git a/commits.json b/commits.json
index 2e5d584..07b2698 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
-  "engine/src/flutter":"7941d7801b0826b21d82f84bc0d160fe599918c1",
+  "engine/src/flutter":"23c4966e568ed6a6f62b3f35173ad83562443620",
   "engine/src/flutter/third_party/dart":"7cac23ae8a5e331c44df4b4f8ea4540f038b2781",
   "flutter":"4397f43d37abc915a784080a1bd62ee374ff45b1"
 }
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