Roll Skia from 81b9c7fd19b2 to c20aeee90da9 (3 revisions)

https://skia.googlesource.com/skia.git/+log/81b9c7fd19b2..c20aeee90da9

2023-09-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Skia Infra from 918412e0912f to af63cb4763f0 (11 revisions)
2023-09-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from 881dc3bb55fd to 2eae44a62806 (11 revisions)
2023-09-21 johnstiles@google.com Add new flags to sksl-minify usage string.

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,jonahwilliams@google.com,rmistry@google.com,tdenniston@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://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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': '81b9c7fd19b23dd0b54a2d6fd4d8b07b3cedeee5',
+  'skia_revision': 'c20aeee90da98a461070ff5b31347a898f0d52c8',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: bb4f64aa5249d361a156d0ce29d71b3b
+Signature: 8b2b70340497d70f1632596905227132
 
 ====================================================================================================
 LIBRARY: etc1