Roll Skia from 3fea88565a83 to 20a1c61c5597 (3 revisions) (#41530)

https://skia.googlesource.com/skia.git/+log/3fea88565a83..20a1c61c5597

2023-04-26 [email protected] graphite: Fix DrawPass::SortKey static_assert for 32-bit builds
2023-04-26 [email protected] [graphite] Redefine PrioritizeGpuReads as AccessPattern
2023-04-26 [email protected] Merge 1 release notes into RELEASE_NOTES.md

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 [email protected],[email protected],[email protected],[email protected] 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

Author: skia-flutter-autoroll

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': '3fea88565a83a24bbcdc3513e143bac2634357b0',
+  'skia_revision': '20a1c61c55977f0b6c291584d8b1108e180883bf',
 
   # 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: c33c3351133cb6b13039079b3c94f1e0
+Signature: e7f272d896f2837bf7a1825fa17efec1
 
 ====================================================================================================
 LIBRARY: etc1
@@ -384,7 +384,6 @@ FILE: ../../../third_party/skia/modules/pathkit/perf/pathops.bench.js
 FILE: ../../../third_party/skia/modules/pathkit/perf/perfReporter.js
 FILE: ../../../third_party/skia/modules/skparagraph/test.html
 FILE: ../../../third_party/skia/package-lock.json
-FILE: ../../../third_party/skia/relnotes/skrp.md
 FILE: ../../../third_party/skia/src/core/SkOrderedReadBuffer.h
 FILE: ../../../third_party/skia/src/gpu/gpu_workaround_list.txt
 FILE: ../../../third_party/skia/src/sksl/generated/sksl_compute.minified.sksl