Roll Skia from 20578fecfc37 to 2386d5077ec5 (2 revisions) (flutter#50238)

https://skia.googlesource.com/skia.git/+log/20578fecfc37..2386d5077ec5

2024-02-01 borenet@google.com Temporarily remove Pixel7 jobs
2024-02-01 bungeman@google.com Roll libpng from v1.6.37-6 to v1.6.40-61

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,jmbetancourt@google.com,matanl@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': '20578fecfc378301ab62c62781e0118f58aa1e33',
+  'skia_revision': '2386d5077ec5b1479a13f0ae68f73c1a6cb81ff6',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.