Upgrade sonar to new 6.2 installation (#456)

* Upgrade to new sonar instance. Fix new identified issues.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

hawkbit-dmf-amqp/src/main/java/org/eclipse/hawkbit/amqp/AmqpMessageHandlerService.java

@@ -322,7 +322,7 @@ public class AmqpMessageHandlerService extends BaseAmqpService {
     private Action checkActionExist(final Message message, final ActionUpdateStatus actionUpdateStatus) {
         final Long actionId = actionUpdateStatus.getActionId();
         LOG.debug("Target notifies intermediate about action {} with status {}.", actionId,
-                actionUpdateStatus.getActionStatus().name());
+                actionUpdateStatus.getActionStatus());
 
         if (actionId == null) {
             logAndThrowMessageError(message, "Invalid message no action id");