fix incorrect set-up of kafka property (#1060)

* fix

* fix for string also

* ups

spring-cloud-kubernetes-integration-tests/spring-cloud-kubernetes-configuration-watcher-it/src/test/resources/kafka/kafka-deployment.yaml

@@ -33,9 +33,6 @@ spec:
             - name: KAFKA_LISTENER_SECURITY_PROTOCOL_MAP
               value: "INTERNAL:PLAINTEXT,OUTSIDE:PLAINTEXT"
 
-            - name: KAFKA_ZOOKEEPER_CONNECT
-              value: "INTERNAL://kafka:9092,OUTSIDE://localhost:9094"
-
             - name: KAFKA_ADVERTISED_LISTENERS
               value: "INTERNAL://kafka:9092,OUTSIDE://localhost:9094"
 
@@ -54,4 +51,4 @@ spec:
             # that is set automatically. Since we don't have that many, producers will fail.
             # This setting ensures that there is just one replication
             - name: KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR
-              value: 1
+              value: "1"