Roll Dart SDK from 624d14c61b2d to 0193522c6638 (1 revision) (#25405)

DEPS

@@ -35,7 +35,7 @@ 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': '624d14c61b2d465aeb0851e632272c9edf25e0c2',
+  'dart_revision': '0193522c66384459ab21866e6bfbada0df08be4a',
 
   # 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

-Signature: 07594ca327646ffef1d11e0228918cd2
+Signature: 33ad26dbbaeab0bb1f407110c0a915b2
 
 UNUSED LICENSES: