Roll Skia from 03732b9f885e to ddb6901e6141 (5 revisions) (flutter/engine#54287)

https://skia.googlesource.com/skia.git/+log/03732b9f885e..ddb6901e6141

2024-08-01 egdaniel@google.com [Vulkan] Add context option to adjust default VMA block size.
2024-08-01 johnstiles@google.com Add support to SkSLTest for invoking child shaders.
2024-08-01 kjlubick@google.com Downgrade the warning for gni exporting on windows
2024-08-01 kjlubick@google.com Build only fiddle executable in skia-release
2024-08-01 johnstiles@google.com Remove assertion that modules are non-empty.

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,johnstiles@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

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': '03732b9f885e6e2cdf047c43c92903f2993f92c3',
+  'skia_revision': 'ddb6901e614151e449d52833777a9c10819f3d56',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 18ac76557737bb82e9fcd58a04a1908b
+Signature: 712b3b863d3c57c9faebf729467ec201
 
 ====================================================================================================
 LIBRARY: etc1