Bug 1716846 [wpt PR 29402] - Update wpt metadata, a=testonly

wpt-pr: 29402 wpt-type: metadata
2021-06-29 17:18:54 +00:00 · 2021-06-29 17:18:54 +00:00 · 69cd038434
--- a/testing/web-platform/meta/file-system-access/sandboxed_FileSystemFileHandle-create-sync-access-handle-dedicated-worker.https.window.js.ini
+++ b/testing/web-platform/meta/file-system-access/sandboxed_FileSystemFileHandle-create-sync-access-handle-dedicated-worker.https.window.js.ini
@ -0,0 +1,3 @@
+[sandboxed_FileSystemFileHandle-create-sync-access-handle-dedicated-worker.https.window.html]
+  [Attempt to create a sync access handle.]
+    expected: FAIL