Roll Flutter Engine from 241ca5c1d6be to 4e49b9deb72d (1 revision) (#129730)

https://github.com/flutter/engine/compare/241ca5c1d6be...4e49b9deb72d

2023-06-28 jonahwilliams@google.com [Impeller] remove redundant highp
modifiers in vertex shaders. (flutter/engine#43305)

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

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

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/+doc/main/autoroll/README.md

bin/internal/engine.version

-241ca5c1d6be881b4a5cb5a30611ff15de8189a8
+4e49b9deb72d1c33fa8dc9f0a5358cda42d8d07c