Add missing secret to ini container

src/main/resources/taiga/docker-compose.yml

@@ -33,6 +33,8 @@ spec:
           name: taiga-back-configmap
         - secretRef:
           name: taiga-back-secret
+        - secretRef:
+          name: taiga-rabbitmq-secret
         env:
         - name: POSTGRES_USER # ToDo: does taiga need a specific postgres version?
           valueFrom: # ToDo: which env vars are needed by taiga-back and taiga-async