Roll Skia from 430d60054d66 to 9b1642f2cfea (7 revisions) (flutter#174625)

https://skia.googlesource.com/skia.git/+log/430d60054d66..9b1642f2cfea

2025-08-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll
vulkan-deps from b99b4f439cf2 to 140a4bc26cef (13 revisions)
2025-08-28
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2025-08-28 fmalita@google.com Include SkUnicode.h when needed in
FactoryHelpers.h
2025-08-28
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2025-08-27 bungeman@google.com Ownership for SkFontMgr_Android_Parser
FontFamily
2025-08-27 skia-autoroll@skia-public.iam.gserviceaccount.com Manual roll
skcms from c602c137fb05 to a58dfb3b4353 (1 revision)
2025-08-27 fmalita@google.com More SkUnicode nextPos16 cleanup

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,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

Author: engine-flutter-autoroll

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': '430d60054d660f9cf246d7da6edd6498792227b9',
+  'skia_revision': '9b1642f2cfea067d28a7a6e7ede33fc9b6e494dc',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.