Roll Skia from 7dca9cd5bf70 to 2c964e925435 (1 revision) (flutter/engine#44128)

https://skia.googlesource.com/skia.git/+log/7dca9cd5bf70..2c964e925435

2023-07-29 ajgo@chromium.org Prime expat's hash salt on Windows

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,jonahwilliams@google.com,michaelludwig@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

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': '7dca9cd5bf7015549eb8715f463738fd537cb6cd',
+  'skia_revision': '2c964e9254354921f6a85086b90c9ae5f767c266',
 
   # 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: ecdd76cb9424f9d56a3273de9c568b20
+Signature: 8a7f2176b195be047079f9c6752380f3
 
 ====================================================================================================
 LIBRARY: etc1