Roll src/third_party/dart b560016446e7..313bf285dfe6 (1 commits) (#18458)

diff --git a/DEPS b/DEPS
index 301b5a1..dae2d62 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': 'b560016446e7bdc55eb533e726b6c02afdbfc3ff',
+  'dart_revision': '313bf285dfe691340c5b184cb2b5ae851ba068ed',
 
   # 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 4f2eaec..14748d4 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: f65971c5f33d56a963b087f9fff41602
+Signature: a6ad297b14083f3fc821071c6bd46d3b
 
 UNUSED LICENSES: