Roll Dart SDK from 22da8934ac8b to bec128612c03 (16 revisions) (#19436)

DEPS

@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '22da8934ac8b84a6b9f26a2f927bdcc764e032bd',
+  'dart_revision': 'bec128612c03899856ecc729d41313fc2dfadf74',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -64,7 +64,7 @@ vars = {
   'dart_shelf_web_socket_tag': '0.2.2+3',
   'dart_source_map_stack_trace_tag': '2.0.0',
   'dart_source_span_tag': '1.7.0',
-  'dart_stack_trace_tag': '07569831f17844ef90214a179db211954a7f7324',
+  'dart_stack_trace_tag': '56811dbb2530d823b764fe167ec335879a4adb32',
   'dart_stagehand_tag': 'v3.3.9',
   'dart_stream_channel_tag': '70433d577be02c48cb16d72d65654f3b4d82c6ed',
   'dart_test_reflective_loader_tag': '0.1.9',

ci/licenses_golden/licenses_third_party

-Signature: 75bd63edb7945bb7e9f6e31084c50e50
+Signature: bebc7bb6c9c3cf8802ea502244b7b668
 
 UNUSED LICENSES: