Roll Flutter Engine from effcf97a1f7c to d374c78bcf52 (5 revisions) (f…

…lutter#144659)

flutter/engine@effcf97...d374c78

2024-03-06 matanlurey@users.noreply.github.com Revamp the `scenario_app/../README.md` to encourage self-sustenance (flutter/engine#51196)
2024-03-06 jonahwilliams@google.com [Impeller] disable blending in gaussian intermediate steps. (flutter/engine#51118)
2024-03-06 bdero@google.com [Impeller] Enable depth buffer clipping & Stencil-then-Cover path rendering. (flutter/engine#51219)
2024-03-06 skia-flutter-autoroll@skia.org Roll Skia from 37947aec8c5c to 1d1fd7fe1a89 (1 revision) (flutter/engine#51216)
2024-03-06 bdero@google.com [Impeller] Fix path winding when bridging from contours with an odd number of points. (flutter/engine#51218)

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 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

@@ -1 +1 @@
-effcf97a1f7c23c77c7cb17daf60a82ca856197a
+d374c78bcf522fa1240f249ca9f2875d8a335e10