set exporter to master branch

Author: marinakog

integration-tests/src/test/java/oracle/kubernetes/operator/ITMonitoringExporter.java

@@ -661,8 +661,7 @@ private static void gitCloneBuildMonitoringExporter() throws Exception {
         logger.info(" Cloning and building Weblogic Server Monitoring Exporter application");
         // git clone exporter project
         removeAndClone
-            .append(
-                " git clone -b load-balancer  https://github.com/oracle/weblogic-monitoring-exporter.git ")
+            .append(" git clone   https://github.com/oracle/weblogic-monitoring-exporter.git ")
             .append(monitoringExporterSrcDir);
         TestUtils.exec(removeAndClone.toString());
       }