Roll Flutter Engine from f23cc4dda1ad to b686508a1dbf (4 revisions) (#147258)

flutter/engine@f23cc4d...b686508

2024-04-23 [email protected] Roll Fuchsia Linux SDK from L533ubzhjWwW7jxbc... to le_-uFgRD5DjvvqgL... (flutter/engine#52329)
2024-04-23 [email protected] [Impeller] only use framebuffer advanced blends if available. (flutter/engine#52284)
2024-04-23 [email protected] [Impeller] drawVertices uber shader. (flutter/engine#52315)
2024-04-23 [email protected] Roll Dart SDK from acd54f86bdbb to 6a670b60eb06 (1 revision) (flutter/engine#52327)

Also rolling transitive DEPS:
  fuchsia/sdk/core/linux-amd64 from L533ubzhjWwW to le_-uFgRD5Dj

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

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: engine-flutter-autoroll

bin/internal/engine.version

@@ -1 +1 @@
-f23cc4dda1ad8e75cac93f7a746e97a6fa3dd44d
+b686508a1dbf292c7d2ef0c2edcec00a9bab4522

bin/internal/fuchsia-linux.version

@@ -1 +1 @@
-L533ubzhjWwW7jxbcG6mdIXyhn56LmfjD8txTzJB5w0C
+le_-uFgRD5DjvvqgLusDPJslo2yi3XsomslUljzSyWsC