Roll Skia from 895fa7417947 to 502ee6f2a0d7 (4 revisions) (flutter#179617)

https://skia.googlesource.com/skia.git/+log/895fa7417947..502ee6f2a0d7

2025-12-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE
from 4ccd968c8edc to 78bb5a33a9e9 (15 revisions)
2025-12-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Skia
Infra from f875023015f9 to ca3eb8741f18 (10 revisions)
2025-12-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn
from 23f08c798e68 to 8de9b80c5bd9 (13 revisions)
2025-12-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll
vulkan-deps from 8b33d336e1ab to 4edb81c5d7c8 (5 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 jimgraham@google.com,kjlubick@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

Author: engine-flutter-autoroll

DEPS

@@ -15,7 +15,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': '895fa74179478c0dc0d548e0c40e2c32c6445be5',
+  'skia_revision': '502ee6f2a0d77f320e56d7110dc9cb8b0a43f763',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.