Roll Flutter (stable) from 46787ee49c1f to ef1af02aead6 (1 revision) (f…

…lutter#5887)

flutter/flutter@46787ee...ef1af02

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-stable-packages
Please CC camillesimon@google.com,rmistry@google.com,stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter (stable): https://github.com/flutter/flutter/issues/new/choose
To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

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

.ci/flutter_stable.version

@@ -1 +1 @@
-46787ee49c1fd80ab603f0702733edab54653aef
+ef1af02aead6fe2414f3aafa5a61087b610e1332