Roll Flutter Engine from 93063f61943a to e16f43eeaaa4 (2 revisions) (#143827)

https://github.com/flutter/engine/compare/93063f61943a...e16f43eeaaa4

2024-02-21 bdero@google.com [Impeller] Add GeometryResult enum with StC modes. (flutter/engine#50816)
2024-02-21 bdero@google.com Update impeller-cmake-example (flutter/engine#50808)

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

-93063f61943afa65b34db858f4e69b7f121ad9d8
+e16f43eeaaa40dd765d621988d5787ff57f0e005