Roll Flutter Engine from 1c16af76ca26 to 06d0c08460e5 (3 revisions) (#129200)

https://github.com/flutter/engine/compare/1c16af76ca26...06d0c08460e5

2023-06-20 jason-simmons@users.noreply.github.com A few minor cleanups of the MultiFrameCodec (flutter/engine#42935)
2023-06-20 jonahwilliams@google.com [Impeller] use pixel format in construction of initial PSO objects, set default sample count to 4. (flutter/engine#42972)
2023-06-20 skia-flutter-autoroll@skia.org Roll Dart SDK from dc6691ef755c to 219b3198373c (1 revision) (flutter/engine#43005)

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

-1c16af76ca262a5695978d96625b348fb54ab656
+06d0c08460e50564e85342f9ec231aa858fc4bb9