Roll Dart SDK from 05167f3 to b414716 (2 revisions) (#19268)

Author: skia-flutter-autoroll

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': '05167f3b63284c902a2e3a4badbc89db90c35521',
+  'dart_revision': 'b41471670edc373199cb97b044060b901cb288ad',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py