Roll src/third_party/dart 7aae1f603251..2d57c1f86e22 (7 commits) (#18426)

diff --git a/DEPS b/DEPS
index 9160d88..02c8a4b 100644
--- a/DEPS
+++ b/DEPS
@@ -34,7 +34,7 @@
   # 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': '7aae1f603251eb549eb3a2107b3823d98293e84d',
+  'dart_revision': '2d57c1f86e22f94df17b3e14f96c7b42519f40b1',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
diff --git a/ci/licenses_golden/licenses_third_party b/ci/licenses_golden/licenses_third_party
index b3f40ea..ff6fd17 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: e1e38e42895f04fe1ac7978d88485888
+Signature: d11e7be0a187f7a8ce2e726395c5f7d8
 
 UNUSED LICENSES: