Roll Skia from a15e5cfe046c to 690c8d946e03 (1 revision) (#54369)

https://skia.googlesource.com/skia.git/+log/a15e5cfe046c..690c8d946e03

2024-08-06 brianosman@google.com CircleOp: Require an actual stroke to activate round caps

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,jsimmons@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

Author: skia-flutter-autoroll

DEPS

@@ -14,7 +14,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': 'a15e5cfe046c4c7c458b25bcd2d29e314f600d0e',
+  'skia_revision': '690c8d946e0341eb4bd63e347c3de7e7b64697f4',
 
   # 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: 500f6365f34813113c25ede8d085fa8a
+Signature: 4a3fa59965314240f085651badbe3743
 
 ====================================================================================================
 LIBRARY: etc1