Roll Skia from 3ab92e777da1 to 6f65f0631e5a (3 revisions) (flutter/engine#37941)

https://skia.googlesource.com/skia.git/+log/3ab92e777da1..6f65f0631e5a

2022-11-28 kjlubick@google.com Fix compile scripts which use ninja
2022-11-28 brianosman@google.com Gradients: Rename confusing fields
2022-11-28 johnstiles@google.com Add support for splat-constructors.

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC bungeman@google.com,kaushikiska@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry
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

DEPS

@@ -18,7 +18,7 @@ vars = {
   'llvm_git': 'https://llvm.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '3ab92e777da10802a5d1f065681275807ed17c74',
+  'skia_revision': '6f65f0631e5aba06582c59502b1274f8714fa127',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 4970badaf1e6cce68fc28f560d0adbde
+Signature: c9403f4e30ee80dc306e92b1a6b15a47
 
 UNUSED LICENSES: