Roll Skia from 85971b25cf4b to 64c5de6663a4 (2 revisions) (#47091)

https://skia.googlesource.com/skia.git/+log/85971b25cf4b..64c5de6663a4

2023-10-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from 4885e1405318 to c0bb2922dc89 (6 revisions)
2023-10-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SK Tool from bff098b9b7ca to 37332ece3fb7

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,jimgraham@google.com,rmistry@google.com,scroggo@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://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

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': '85971b25cf4b94a4843f6a4e9faa6412b3d56d92',
+  'skia_revision': '64c5de6663a42a7b68a577579f09c29cb7017496',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.