Roll Flutter Engine from 8a51e124fbf1 to 7690eb12ded5 (1 revision) (#145634)

https://github.com/flutter/engine/compare/8a51e124fbf1...7690eb12ded5

2024-03-23 skia-flutter-autoroll@skia.org Roll Dart SDK from ad26f4885bf4 to 45169152b424 (2 revisions) (flutter/engine#51638)

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

-8a51e124fbf168295a1b05f8d66459bfb29ae8a9
+7690eb12ded5569b307c95d810119c72c3523d46