Remove juberti as OWNER

and add new owners.
No longer working on project, and not committer either.

Bug: none
Change-Id: I85396d30e127ed0a542529561fdc4cf022951c51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2033349Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738640}

services/network/p2p/OWNERS

+guidou@chromium.org
+hta@chromium.org
 sergeyu@chromium.org
-juberti@chromium.org
 
 # COMPONENT: Blink>WebRTC