Roll Dart SDK from 020988602772 to f7751ccea102 (4 revisions) (flutter#177449)

https://dart.googlesource.com/sdk.git/+log/020988602772..f7751ccea102

2025-10-23 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.11.0-53.0.dev
2025-10-23 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.11.0-52.0.dev
2025-10-23 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.11.0-51.0.dev
2025-10-23 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.11.0-50.0.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 chinmaygarde@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:
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: engine-flutter-autoroll

DEPS

@@ -57,13 +57,13 @@ 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': '0209886027726944616043acd0592fb3888b4573',
+  'dart_revision': 'f7751ccea102ccc89477f95121c3945bf06e5f32',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
   'dart_ai_rev': '0a85ddf4f75cee6e3abe07cecdffae69bbdbc793',
   'dart_binaryen_rev': '1d2e23d5e55788091a51420ba3a9889d4efe7509',
-  'dart_boringssl_rev': '2067eac9e25332fa983c3d5f1bd1b00fa4f467fc',
+  'dart_boringssl_rev': 'db1a8456167249f95b854a1cd24c6b553d0f1567',
   'dart_core_rev': '5c3e2c38df268be2347f3aad30ced0147dd012bb',
   'dart_devtools_rev': '0327830448901920f739259364c3f2f624df5a03',
   'dart_ecosystem_rev': '6a8746e70b315aceec7f81cae9bef8b67abb2453',