Roll Flutter Engine from 06448ee8165f to cb6115d3a6ab (10 revisions) (#143972)

https://github.com/flutter/engine/compare/06448ee8165f...cb6115d3a6ab

2024-02-22 dnfield@google.com Avoid generated plugin registrant warnings for scenario_app (flutter/engine#50874)
2024-02-22 15619084+vashworth@users.noreply.github.com Delete and create iOS simulator before running Scenario app test (flutter/engine#50835)
2024-02-22 skia-flutter-autoroll@skia.org Roll Skia from b9c16065b76d to dd8cd405d145 (2 revisions) (flutter/engine#50872)
2024-02-22 zanderso@users.noreply.github.com Remove 'bringup: true' from 'Mac mac_unopt' (flutter/engine#50865)
2024-02-22 31859944+LongCatIsLooong@users.noreply.github.com Pass the missing strut half leading flag over to skia paragraph builder (flutter/engine#50385)
2024-02-22 jacksongardner@google.com Implement frame timing callbacks in Skwasm. (flutter/engine#50737)
2024-02-22 flar@google.com [Impeller] Add stroke benchmarks that create UVs with no transform (flutter/engine#50847)
2024-02-22 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Remove WindowManager reflection in SingleViewPresentation.java (#49996)" (flutter/engine#50873)
2024-02-22 zanderso@users.noreply.github.com Use RBE on more Windows builders (flutter/engine#50866)
2024-02-22 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[Impeller] cache onscreen render targets. (#50751)" (flutter/engine#50871)

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://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

-06448ee8165f4ff6579ef9510ac69322eda896ac
+cb6115d3a6abe9af691b78c067954f75378b9f6b