Roll Flutter Engine from c4396f9f602f to d2973619074e (6 revisions) (#125039)

https://github.com/flutter/engine/compare/c4396f9f602f...d2973619074e

2023-04-18 leroux_bruno@yahoo.fr [macOS] Fix Ctrl+Tab is broken
(flutter/engine#40706)
2023-04-18 skia-flutter-autoroll@skia.org Roll Fuchsia Mac SDK from
K1LGtKXyxRlW3Q9O1... to qZHSvkpAU1-YYGvYc... (flutter/engine#41293)
2023-04-18 aam@google.com Roll buildroot to
059d155b4d452efd9c4427c45cddfd9445144869 (flutter/engine#41288)
2023-04-18 bdero@google.com [Impeller] Remove glyph pixel rounding
during text frame conversion (flutter/engine#41285)
2023-04-18 godofredoc@google.com Revert "Reland "Migrate mac_host_engine
to engine v2 builds."" (flutter/engine#41284)
2023-04-17 flar@google.com focus SkiaGPUObject wrappers on only those
objects that need the protection (flutter/engine#41237)

Also rolling transitive DEPS:
  fuchsia/sdk/core/mac-amd64 from K1LGtKXyxRlW to qZHSvkpAU1-Y

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 chinmaygarde@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

-c4396f9f602f7fb1dcc0f3160c9ab51bcd2aea1e
+d2973619074e5067d00be75f012ac75d949b07df

bin/internal/fuchsia-mac.version

-K1LGtKXyxRlW3Q9O1lYnZImKu0WZH8EmqOTwlLnOSR0C
+qZHSvkpAU1-YYGvYcitkhsDxGUUEEJJiavtJf_-skC4C