Roll Skia from 9bb236d03e63 to a8715028bba1 (1 revision) (#44671)

https://skia.googlesource.com/skia.git/+log/9bb236d03e63..a8715028bba1

2023-08-14 skia-autoroll@skia-public.iam.gserviceaccount.com Roll vulkan-deps from db53c6fcecc7 to c3ff3250b9e7 (1 revision)

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,chinmaygarde@google.com,egdaniel@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
diff --git a/DEPS b/DEPS
index af227ac..a601e94 100644
--- a/DEPS
+++ b/DEPS
@@ -18,7 +18,7 @@
   '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': '9bb236d03e63dbbc4407e159d2c6287adc1f9070',
+  'skia_revision': 'a8715028bba17e04c4e23bcfe4fda240aebe36bf',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.