AMQP: Add more routing keys for ELNBuildSync

EBS expects to receive notifications for task state changes as well as
the start of repo regeneration. Otherwise, it has to fall back to
polling, which is much slower (and what it has been doing for some time
now).

Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>

roles/rabbitmq_cluster/tasks/apps.yml

@@ -158,8 +158,10 @@
     # TTL: 10 days (in miliseconds)
     message_ttl: 864000000
     routing_keys:
+      - "#.buildsys.repo.init"
       - "#.buildsys.repo.done"
       - "#.buildsys.tag"
+      - "#.buildsys.task.state.change"
 
 # ELN END