b591674 Roll Dart SDK from e2a4eaba73b8 to 13deada5b267 (1 revision) (flutter/engine#21453)

engine-flutter-autoroll · engine-flutter-autoroll · commit 7333271117ad · 2020-09-28T17:14:44.000Z
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
@@ -1 +1 @@
-2917a650110bd9232eaea23fe35f3c2c27abe877
+b5916741dc62be5a52e15f238434c2480fe49fca
