Roll Fuchsia GN SDK from ArgKhW3O86dFu3jHY... to v8vZJSz3FfEj00WMG...

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 [email protected],[email protected] 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:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: luci.dart.try:vm-fuchsia-release-x64-try;luci.dart.try:vm-fuchsia-release-arm64-try
Change-Id: Idb3a0573d3caa11aaae29ff30cc87b929f9a76c5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/397240
Commit-Queue: Ryan Macnak <[email protected]>
Reviewed-by: Alexander Aprelev <[email protected]>
Reviewed-by: Ryan Macnak <[email protected]>

DEPS

@@ -634,7 +634,7 @@ deps = {
     "packages": [
       {
       "package": "chromium/fuchsia/gn-sdk",
-      "version": "ArgKhW3O86dFu3jHY4iET_azMrJygzWdDTdvE_AAS2AC",
+      "version": "v8vZJSz3FfEj00WMGMtDrZaN7ATe_tU3i7zgQMrT5_wC",
       }
     ],
     "condition": 'download_fuchsia_deps',