[webauthn] Send WPT notifications to myself

Fixed: 1054402
Change-Id: I4e07f98bf365f0adbbf51680d913af91b0e81859
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2066448
Auto-Submit: Nina Satragno <nsatragno@chromium.org>
Commit-Queue: Robert Ma <robertma@chromium.org>
Reviewed-by: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743112}

third_party/blink/web_tests/external/wpt/webauthn/OWNERS

 file://device/fido/OWNERS
+nsatragno@chromium.org
 
 # COMPONENT: Blink>WebAuthentication
 # TEAM: identity-dev@chromium.org
+# WPT-NOTIFY: true