56cad89b1 Speed up first asset load by encoding asset manifest in binary rather than JSON (flutter/flutter#113637) (#2900)

diff --git a/.ci/flutter_master.version b/.ci/flutter_master.version
index 10b085a..ad25d9a 100644
--- a/.ci/flutter_master.version
+++ b/.ci/flutter_master.version
@@ -1 +1 @@
-d52e2de5bf16249f3a44319ae2807169f9b0b13a
+56cad89b1e8d79b75b88116a5db9cb70f91c4986