Roll fuchsia/sdk/core/mac-amd64 from T3Xkz... to E3s7G... (#13114)

Roll fuchsia/sdk/core/mac-amd64 from T3Xkz... to E3s7G...

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/fuchsia-mac-sdk-flutter-engine
Please CC  on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

https://dart.googlesource.com/external/github.com/flutter/engine/+/e3b5d8ef32266326d5de3f43f8ceab46095ee72e
diff --git a/commits.json b/commits.json
index 02e8eb0..016ce8d 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
-  "external/github.com/flutter/engine":"7facc50d1cea2d2e2f8e48103309e992024ae620",
+  "external/github.com/flutter/engine":"e3b5d8ef32266326d5de3f43f8ceab46095ee72e",
   "external/github.com/flutter/flutter":"532a8fed41a4f6595965f02f3edf9666ba5ebf44",
   "sdk":"545a06b19e6957c9edb227d83b31c6622881fda1"
 }
\ No newline at end of file