Roll Skia from c6577d328585 to 6009cc6d7d80 (2 revisions) (#44264)

https://skia.googlesource.com/skia.git/+log/c6577d328585..6009cc6d7d80

2023-08-02 johnstiles@google.com Fix variable-shadow warnings from Clang 17.
2023-08-02 johnstiles@google.com Remove DSLType::Void/Invalid/Poison.

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,jacksongardner@google.com,jvanverth@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://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': 'c6577d328585be84442c1702a8c3bea6fb285087',
+  'skia_revision': '6009cc6d7d80d6573030d4d7d7ce8ce4b29bbee1',
 
   # 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: b96c63202650e42689025d83091878f1
+Signature: ed294c468182f2eac0f329e74b001cf0
 
 ====================================================================================================
 LIBRARY: etc1