[Lookalikes] Bump target embedding flag expiry and swap owners.

Change-Id: Ie1a243373fa050b06eb87436e07c21a05948b34c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2422888
Commit-Queue: Joe DeBlasio <jdeblasio@chromium.org>
Commit-Queue: Mustafa Emre Acer <meacer@chromium.org>
Auto-Submit: Joe DeBlasio <jdeblasio@chromium.org>
Reviewed-by: Mustafa Emre Acer <meacer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809142}

chrome/browser/flag-metadata.json

@@ -795,8 +795,8 @@
   },
   {
     "name": "detect-target-embedding-lookalikes",
-    "owners": [ "jdeblasio", "behnoodm" ],
-    "expiry_milestone": 86
+    "owners": [ "jdeblasio", "meacer" ],
+    "expiry_milestone": 87
   },
   {
     "name": "device-discovery-notifications",