Roll Flutter Engine from 45e2b41e5ae5 to 1e821961e96a (2 revisions) (#133520)

https://github.com/flutter/engine/compare/45e2b41e5ae5...1e821961e96a

2023-08-29 jonahwilliams@google.com [Impeller] Sync presentation when rendering into FlutterImageView. (flutter/engine#44881)
2023-08-28 skia-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from AQZddYgKiWrQL8vny... to Ys38QMyFZToJxnXrF... (flutter/engine#45195)

Also rolling transitive DEPS:
  fuchsia/sdk/core/linux-amd64 from AQZddYgKiWrQ to Ys38QMyFZToJ

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://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

-45e2b41e5ae5563afbfaca45d873451a6962d8a3
+1e821961e96afab6aaa330a4c7561c2c5c43b692

bin/internal/fuchsia-linux.version

-AQZddYgKiWrQL8vnyZlhYg3ltgH_oGTnzETLJ12cODkC
+Ys38QMyFZToJxnXrF8aJ6ZaggHtrqx6mEO02Lk9seYkC