Roll Flutter Engine from ea275c3d27d3 to 80868149792f (4 revisions) (#136307)

https://github.com/flutter/engine/compare/ea275c3d27d3...80868149792f

2023-10-11 matanlurey@users.noreply.github.com Remove support for `Paint.enableDithering=false` in `dart:ui`. (flutter/engine#46745)
2023-10-11 chris@bracken.jp Move //third_party/glfw to //flutter/third_party/glfw (flutter/engine#46733)
2023-10-11 skia-flutter-autoroll@skia.org Roll Skia from 06145491fd17 to 4935bed4260d (3 revisions) (flutter/engine#46748)
2023-10-11 bdero@google.com [Impeller] Guard calls to extension proc DebugMessageControlKHR. (flutter/engine#46747)

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 jsimmons@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://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

bin/internal/engine.version

-ea275c3d27d3aa2343a0b9670e82dab8ae63e48e
+80868149792f17707f6dea5d54874332a7b3b02d