Roll Dart SDK from 76abdf94faa8 to 48f641e8b249 (1 revision) (#192055)

https://dart.googlesource.com/sdk.git/+log/76abdf94faa8..48f641e8b249

2026-08-31 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.14.0-181.0.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
Please CC dart-vm-team@google.com,jsimmons@google.com on the revert to
ensure that a human
is aware of the problem.

To file a bug in Flutter:
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

diff --git a/DEPS b/DEPS
index e556546..547cd88 100644
--- a/DEPS
+++ b/DEPS
@@ -55,7 +55,7 @@
   # updated revision list of existing dependencies. You will need to
   # gclient sync before and after update deps to ensure all deps are updated.
   # updated revision list of existing dependencies.
-  'dart_revision': '76abdf94faa8b02d80a4b1ca5772e96763b7573d',
+  'dart_revision': '48f641e8b249b20ea81d642440dd6e3288ced525',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py