Bumpup kubernetes client from 4.7.1 to 5.0.0 (support up to kubernetes 1.19)

Change-Id: I7555325fd5eee5bbbb7a0a7a5c27bfc2c333fc7f
diff --git a/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/cli/K8sNetworkPolicyListCommand.java b/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/cli/K8sNetworkPolicyListCommand.java
index ffc76d7..f86db47 100644
--- a/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/cli/K8sNetworkPolicyListCommand.java
+++ b/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/cli/K8sNetworkPolicyListCommand.java
@@ -20,7 +20,7 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
-import io.fabric8.kubernetes.api.model.networking.NetworkPolicy;
+import io.fabric8.kubernetes.api.model.networking.v1.NetworkPolicy;
 import io.fabric8.kubernetes.client.utils.Serialization;
 import org.apache.commons.lang.StringUtils;
 import org.apache.karaf.shell.api.action.Command;