Bug 1695941 [wpt PR 27857] - Update wpt metadata, a=testonly

wpt-pr: 27857 wpt-type: metadata
2021-03-09 10:48:25 +00:00 · 2021-03-09 10:48:25 +00:00 · 6d6a712143
--- a/testing/web-platform/meta/fetch/metadata/dir.ini
+++ b/testing/web-platform/meta/fetch/metadata/dir.ini
@ -1 +1,2 @@
 prefs: [dom.security.secFetch.enabled:true]
+leak-threshold: [default:51200]