Roll Skia from af7ff0e98c4e to a7da13848085 (3 revisions) (#166560)

https://skia.googlesource.com/skia.git/+log/af7ff0e98c4e..a7da13848085

2025-04-03 danieldilan@google.com Add correct type to SkStringPrintf in
EncodeTest
2025-04-03 nicolettep@google.com [graphite] Formatting fixes
2025-04-03 bungeman@google.com Mark SkScalerContext::fRec const

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 aaclarke@google.com,egdaniel@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

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': 'af7ff0e98c4ec9b860442bfb8c61fc2bb386f695',
+  'skia_revision': 'a7da13848085143e730dc3ea946ba8b4d2176ea2',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.