Roll Flutter Engine from 34ece7a4abac to b3cbf0678487 (6 revisions) (#125529)

https://github.com/flutter/engine/compare/34ece7a4abac...b3cbf0678487

2023-04-25 godofredoc@google.com Migrate windows host engine to engine v2. (flutter/engine#41487)
2023-04-25 skia-flutter-autoroll@skia.org Roll Skia from f6f0c4b5ee98 to 809bf518d4ab (3 revisions) (flutter/engine#41494)
2023-04-25 30870216+gaaclarke@users.noreply.github.com Made sure not to turn on wide gamut support without impeller. (flutter/engine#41460)
2023-04-25 skia-flutter-autoroll@skia.org Roll Fuchsia Mac SDK from 5bc9_eyVcLoMrWvdO... to JKHSUjf-qEr0ZMdEi... (flutter/engine#41493)
2023-04-25 skia-flutter-autoroll@skia.org Roll Skia from 1bed4228ea3b to f6f0c4b5ee98 (7 revisions) (flutter/engine#41492)
2023-04-25 30870216+gaaclarke@users.noreply.github.com [Impeller] Fixed blit command missing tracking and added mock vulkan for tests (flutter/engine#41408)

Also rolling transitive DEPS:
  fuchsia/sdk/core/mac-amd64 from 5bc9_eyVcLoM to JKHSUjf-qEr0

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://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

-34ece7a4abaca9914096f0e13cb326093ad82e7f
+b3cbf0678487f2052687d362792023ce7019749f

bin/internal/fuchsia-mac.version

-5bc9_eyVcLoMrWvdO4I8JN6XcGNLdqyC8VeZW54nPH4C
+JKHSUjf-qEr0ZMdEivsshuDUJzCBbVRX7HgUWNgl0eUC