Roll Skia from 126c8faf6c36 to c4af3caee55c (4 revisions) (flutter/engine#47920)

https://skia.googlesource.com/skia.git/+log/126c8faf6c36..c4af3caee55c

2023-11-10 skia-autoroll@skia-public.iam.gserviceaccount.com Manual roll Dawn from d3e897d99222 to 7836e1b2d5e8 (8 revisions)
2023-11-10 herb@google.com Improve Segment intersection
2023-11-10 kjlubick@google.com Revert "Reland "Migrate many direct and indirect uses of SkFontMgr to use TestFontMgr""
2023-11-10 bungeman@google.com Saturate glyph bounds

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,brianosman@google.com,fmalita@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

@@ -18,7 +18,7 @@ vars = {
   'llvm_git': 'https://llvm.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '126c8faf6c3642b3dcd0c851e72e2bd2dfdb9c29',
+  'skia_revision': 'c4af3caee55cb1b73f523d4d59c1cf0287d40448',
 
   # 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: d76bb4081273bec9d88a084f5135c2cc
+Signature: 644f714c755c1fb07038f885a62d1232
 
 ====================================================================================================
 LIBRARY: etc1