Add a batched [] for DNS refreshing on host renames

This will replace the existing DnsRefreshForHostRenameAction.

This is stage one of a three stage migration process. It adds the new queue and
[] but doesn't call them yet. Stage two will cut over to using the new
functionality, and stage three will remove the old functionality.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=134793963

java/google/registry/env/common/default/WEB-INF/queue.xml

@@ -31,6 +31,11 @@
     <mode>pull</mode>
   </queue>
 
+  <queue>
+    <name>async-host-rename-pull</name>
+    <mode>pull</mode>
+  </queue>
+
   <queue>
     <name>delete-commits</name>
     <rate>10/s</rate>