Roll Skia from 8c9a8d3e073c to 3d5a6138b7e5 (4 revisions) (flutter#44557)

https://skia.googlesource.com/skia.git/+log/8c9a8d3e073c..3d5a6138b7e5

2023-08-09 robertphillips@google.com Revise the Protected content slide to better test the bug
2023-08-09 jamesgk@google.com Don't run new gradient test on Graphite
2023-08-09 johnstiles@google.com Speculative fix for Adreno shader error.
2023-08-09 cmumford@google.com Update Windows RTX3060 and GTA960 drivers from 31.0.15.3667 to 31.0.15.3669

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,kjlubick@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': '8c9a8d3e073cd31f4cef0c841fb78515a8b15446',
+  'skia_revision': '3d5a6138b7e52b9b4a8efa8986cdc666b9370605',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.