Roll Skia from 8e83e49cba3a to a8f4bcc62532 (3 revisions) (#162943)

https://skia.googlesource.com/skia.git/+log/8e83e49cba3a..a8f4bcc62532

2025-02-08 skia-autoroll@skia-public.iam.gserviceaccount.com Manual roll
Dawn from 2acbf990918f to 19cc3648535f (7 revisions)
2025-02-08 skia-autoroll@skia-public.iam.gserviceaccount.com Manual roll
ANGLE from e9cda7f685da to ffb7575c7d58 (14 revisions)
2025-02-08 skia-autoroll@skia-public.iam.gserviceaccount.com Roll
vulkan-deps from d7a3a302691b to dbe0a14ab512 (6 revisions)

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 bdero@google.com,kjlubick@google.com,nicolettep@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

DEPS

@@ -14,7 +14,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': '8e83e49cba3a28671d07661d88bddc3e84ae132d',
+  'skia_revision': 'a8f4bcc625322a277f7ce4b1dfcf68b68543e18a',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.