Roll Dart SDK from 2b6cf80 to bd12fd1 (1 revision) (#33579)

Author: skia-flutter-autoroll

DEPS

@@ -45,7 +45,7 @@ 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': '2b6cf804af8786822d74c215d091a67012aeea54',
+  'dart_revision': 'bd12fd10dd934103aad4eb2fc79473f60db95083',
 
   # 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_third_party

@@ -1,4 +1,4 @@
-Signature: a404ed1900184e27b0deccc13e4373bd
+Signature: c0e7ba294e6937b2420d676ff6bcbafd
 
 UNUSED LICENSES:
 
@@ -10001,6 +10001,7 @@ FILE: ../../../third_party/dart/runtime/vm/instructions.cc
 FILE: ../../../third_party/dart/runtime/vm/os_thread_absl.cc
 FILE: ../../../third_party/dart/runtime/vm/os_thread_absl.h
 FILE: ../../../third_party/dart/sdk/lib/_internal/js_dev_runtime/private/runtime_metrics.dart
+FILE: ../../../third_party/dart/sdk/lib/_internal/js_shared/lib/synced/embedded_names.dart
 FILE: ../../../third_party/dart/sdk/lib/_internal/vm/lib/ffi_native_finalizer_patch.dart
 FILE: ../../../third_party/dart/sdk/lib/_internal/vm/lib/finalizer_patch.dart
 FILE: ../../../third_party/dart/sdk/lib/_internal/vm/lib/hash_factories.dart