Roll Fuchsia GN SDK from p6aF_Vx8H1UngmvaX... to JLBh4Z9PKsjIJcqDU...

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/fuchsia-gn-sdk-dart-sdk
Please CC fuchsia-3p-engprod@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Fuchsia GN SDK: https://bugs.fuchsia.dev/p/fuchsia/issues/list
To file a bug in Dart SDK: https://github.com/dart-lang/sdk/issues

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:
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Cq-Include-Trybots: luci.dart.try:vm-fuchsia-release-x64-try;luci.dart.try:vm-fuchsia-release-arm64-try
Change-Id: Ic2d8a2cafb09b231462750997c4daed77edd1b47
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/464840
Reviewed-by: Brian Quinlan <bquinlan@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Brian Quinlan <bquinlan@google.com>
diff --git a/DEPS b/DEPS
index 2dc63d4..1b92b1d 100644
--- a/DEPS
+++ b/DEPS
@@ -593,7 +593,7 @@
     "packages": [
       {
       "package": "chromium/fuchsia/gn-sdk",
-      "version": "p6aF_Vx8H1UngmvaXQJELXPaizLy5zDTlT16HDZnj9gC",
+      "version": "JLBh4Z9PKsjIJcqDUDzEL8Q7whJ3CGRd4QmUL6IzizUC",
       }
     ],
     "condition": 'download_fuchsia_deps',