Roll Dart SDK from 40a4d9b44d72 to 620cf701720d (1 revision) (#22460)

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': '40a4d9b44d724825d86439aa452592c12ea6821c',
+  'dart_revision': '620cf701720d70cc4f84df4ee02741951fc43a9d',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -47,7 +47,7 @@ vars = {
   'dart_http_retry_tag': '0.1.1',
   'dart_http_throttle_tag': '1.0.2',
   'dart_intl_tag': '0.17.0-nullsafety',
-  'dart_linter_tag': '0.1.124',
+  'dart_linter_tag': '0.1.125',
   'dart_oauth2_tag': '1.6.0',
   'dart_protobuf_rev': '3746c8fd3f2b0147623a8e3db89c3ff4330de760',
   'dart_pub_rev': 'b10966c6a8ad7d95c2023b7842fa2697001d2fdf',
@@ -60,7 +60,7 @@ vars = {
   'dart_shelf_web_socket_tag': '0.2.2+3',
   'dart_sse_tag': 'e5cf68975e8e87171a3dc297577aa073454a91dc',
   'dart_stack_trace_tag': '6788afc61875079b71b3d1c3e65aeaa6a25cbc2f',
-  'dart_stagehand_tag': 'v3.3.9',
+  'dart_stagehand_tag': 'v3.3.11',
   'dart_stream_channel_tag': 'd7251e61253ec389ee6e045ee1042311bced8f1d',
   'dart_test_reflective_loader_tag': '0.1.9',
   'dart_tflite_native_rev': '0.4.0+1',

ci/licenses_golden/licenses_third_party

-Signature: f46f11a76c5bdb7e5c43b30b33a286d2
+Signature: de646586a81ab7ea73e865dc98af3b00
 
 UNUSED LICENSES: