Add kenrb, nsatragno to WebAuthn OWNERS

Updating the OWNERS file with current project staff.

Change-Id: I2ddeabaff51e8d93b2ae383b2a9e3b31c44e1781
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1723305
Reviewed-by: Nina Satragno <nsatragno@chromium.org>
Reviewed-by: Adam Langley <agl@chromium.org>
Commit-Queue: Ken Buchanan <kenrb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#682006}
1 file changed