Bug 1389994 - Extend the search events probe expiration to Firefox 65. r=rweiss

toolkit/components/telemetry/Events.yaml

@@ -12,7 +12,7 @@ navigation:
     notification_emails:
       - "past@mozilla.com"
       - "dzeber@mozilla.com"
-    expiry_version: "58.0"
+    expiry_version: "65.0"
     extra_keys:
       engine: The id of the search engine used.