[Incubator/kafka] Fix init container fail when pod restart (#6762)

* incubator/kafka: fix init container fail when pod restart

* bump chart version

incubator/kafka/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 description: Apache Kafka is publish-subscribe messaging rethought as a distributed
   commit log.
 name: kafka
-version: 0.8.6
+version: 0.8.7
 appVersion: 4.1.1
 keywords:
 - kafka

incubator/kafka/templates/statefulset.yaml

@@ -40,7 +40,7 @@ spec:
         command:
           - sh
           - -euxc
-          - "kubectl label pods ${POD_NAME} --namespace ${POD_NAMESPACE} pod=${POD_NAME}"
+          - "kubectl label pods ${POD_NAME} --namespace ${POD_NAMESPACE} pod=${POD_NAME} --overwrite"
         env:
           - name: POD_NAME
             valueFrom: