Add prometheus scrape annotations to RabbitMQ connector

Signed-off-by: Han Verstraete (OpenFaaS Ltd) <han@openfaas.com>

Author: welteki

chart/rabbitmq-connector/templates/deployment.yml

@@ -25,6 +25,9 @@ spec:
 
   template:
     metadata:
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "8081"
       labels:
         app: {{ template "connector.name" . }}
         component: rabbitmq-connector