Roll Skia from 20a431090e24 to a2e605c42ba8 (1 revision) (#46449)

https://skia.googlesource.com/skia.git/+log/20a431090e24..a2e605c42ba8

2023-10-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll vulkan-deps from 285e37076672 to 1e918eeb6193 (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,djsollen@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

DEPS

diff --git a/DEPS b/DEPS
index 366ed3e..e16edd1 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': '20a431090e24b620c32b8389d3a183f34cfc8c8c',
+  'skia_revision': 'a2e605c42ba8697a88d387f5420c7d421a5efaca',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.