[fix] Revert value in statefulset container port (#5722)

It was changed in PR #4907 but caused issues as described in Issue #5577

stable/rabbitmq-ha/Chart.yaml

@@ -1,7 +1,7 @@
 name: rabbitmq-ha
 apiVersion: v1
 appVersion: 3.7.4
-version: 1.5.1
+version: 1.5.2
 description: Highly available RabbitMQ cluster, the open source message broker
   software that implements the Advanced Message Queuing Protocol (AMQP).
 keywords:

stable/rabbitmq-ha/templates/statefulset.yaml

@@ -54,7 +54,7 @@ spec:
               containerPort: 5672
             - name: http
               protocol: TCP
-              containerPort: {{ .Values.rabbitmqManagerPort }}
+              containerPort: 15672
             {{- if .Values.rabbitmqSTOMPPlugin.enabled }}
             - name: stomp-tcp
               protocol: TCP