bump kubeclient-openshift-uberjar to 4.3.0

Author: jcantrill

pom.xml

@@ -73,7 +73,7 @@
 
         <elasticsearch.plugin.name>openshift-elasticsearch</elasticsearch.plugin.name>
         <elasticsearch.version>5.6.13</elasticsearch.version>
-        <kubernetes-client.version>4.0.3</kubernetes-client.version>
+        <kubernetes-client.version>4.3.0</kubernetes-client.version>
         <searchguard.version>5.6.13-19.2</searchguard.version>
         <searchguard-ssl.version>5.6.13-23</searchguard-ssl.version>
         <!-- used by vendor builds to use vendor version of searchguard plugins -->