Roll src/third_party/skia b5729c94f9a7..420696961c8c (1 commits) (#6092)

Auto-roller completed checks. Merging.
diff --git a/DEPS b/DEPS
index d90fe51..a1e885b 100644
--- a/DEPS
+++ b/DEPS
@@ -23,7 +23,7 @@
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': 'b5729c94f9a751da0427c66361a9e7c1e5d4b65c',
+  'skia_revision': '420696961c8c36299d3b712b1e34811ac5bb8cf5',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the
diff --git a/ci/licenses_golden/licenses_skia b/ci/licenses_golden/licenses_skia
index 101ed09..bfa9666 100644
--- a/ci/licenses_golden/licenses_skia
+++ b/ci/licenses_golden/licenses_skia
@@ -1,4 +1,4 @@
-Signature: 459ec92e1919b968b683bffbeef484f3
+Signature: b5a2185a3067abc66bce5032f66de097
 
 UNUSED LICENSES: