Roll Flutter Engine from 09dadce76828 to 63ff0dedd8e6 (2 revisions) (#145611)

https://github.com/flutter/engine/compare/09dadce76828...63ff0dedd8e6

2024-03-22 737941+loic-sharma@users.noreply.github.com [Embedder API] Add helper to create viewport metrics (flutter/engine#51562)
2024-03-22 737941+loic-sharma@users.noreply.github.com [Windows] Allow view controllers to not own the engine (flutter/engine#51570)

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 jonahwilliams@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

-09dadce76828cbdd9754e75a872f064a1fa022fb
+63ff0dedd8e667ae864265b3f4fec12592a31809