Roll Skia from 4cbc1129e587 to af907b24d873 (1 revision) (flutter/engine#53341)

https://skia.googlesource.com/skia.git/+log/4cbc1129e587..af907b24d873

2024-06-11 ccameron@chromium.org SkGainmapEncoder: Add MP extensions to all individual images

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,bungeman@google.com,chinmaygarde@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://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': '4cbc1129e587e3679fd48281f87b5cc8962d47e3',
+  'skia_revision': 'af907b24d8739e5305ac1079328ef280f50a752f',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 7cbb171bb7bfe94b486ac70efcc4a7f2
+Signature: 0fbec1e99741ad7cb3883aa7389049a8
 
 ====================================================================================================
 LIBRARY: etc1