Roll Skia from 4441cde55a79 to 704217de51e1 (1 revision) (#46346)

https://skia.googlesource.com/skia.git/+log/4441cde55a79..704217de51e1

2023-09-28 armansito@google.com Roll vello from 4435398 to ee3a076

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 brianosman@google.com,bungeman@google.com,jacksongardner@google.com,rmistry@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

Author: skia-flutter-autoroll

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': '4441cde55a79e8426aed78c34e83efeafd2289b4',
+  'skia_revision': '704217de51e1be9979aeb4b6878bd1c0cf400883',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: c597a715dc4d0dd9f7de5b5b1fafd88a
+Signature: b7f4f99b87cc14867a24e0985ee43136
 
 ====================================================================================================
 LIBRARY: etc1