Roll Dart SDK from fa724490f430 to 2e22cdf76836 (1 revision) (#27833)

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': 'fa724490f4301ba27e3668a0c16924f05169c45b',
+  'dart_revision': '2e22cdf768368bee0a611d6da5a51de66c66893d',
 
   # 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: e30cd729c47da8d75eb0f0fb6d545dbe
+Signature: d70c36129e318a34bc53e4d6e57d77c6
 
 UNUSED LICENSES: