Give mailman01 an extra fedmsg endpoint.

roles/fedmsg/base/templates/endpoints-mailman.py.j2

@@ -6,10 +6,11 @@ suffix = 'phx2.fedoraproject.org'
 
 config = dict(
     endpoints={
-        # We are running only a single mailman archive runner, so we only
-        # need a single endpoint.
+        # We need an endpoint for each of the mailman pieces that picks up and
+        # imports our plugin.  So far that's the 'archiver' and the 'pipeline'.
         "mailman.mailman01": [
             "tcp://mailman01.%s:3000" % suffix,
+            "tcp://mailman01.%s:3001" % suffix,
         ],
     },
 )