fix: bad rabbitmq references, crashing CI

Author: Veki301

values/wire-server/prod-values.example.yaml

@@ -229,8 +229,8 @@ gundeck:
 #  image:
 #    tag: some-tag (only override if you want a newer/different version than what is in the chart)
   config:
-    rabbitmq:
-      host: rabbitmq-external
+    rabbitmq: # Default value for CI, for on-prem deployment, use rabbitmq-external
+      host: rabbitmq
     cassandra:
       host: cassandra-external
     aws:
@@ -334,8 +334,8 @@ federator:
 background-worker:
   config:
     # logLevel: Debug
-    rabbitmq:
-      host: rabbitmq-external
+    rabbitmq: # Default value for CI, for on-prem deployment, use rabbitmq-external
+      host: rabbitmq
     cassandra:
       host: cassandra-external
     # Enable for federation