Roll Flutter Engine from b9e15923bf0c to a523db3083ed (1 revision) (#112843)

diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index bc21b03..f97a578 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-b9e15923bf0c2808f08c5833d31e07b16fcf12f9
+a523db3083ed4687536b7d24b5fdd223efb2f05d