Fix cancel action status (#429)

* Fixed handling of action cancellation status updates.

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

* Fix broken DDI test.

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

* Code readibility.

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

* Reduce access to default.

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

* Added test for finished on action that is in cancelling.

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

* Update MariaDb driver

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

* Wrong branch

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

* Remove duplicate status definition.

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

* Use updated picture in docs.

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

* Leverage existing statics.

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

* Fix picture upload.

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

* Revert change

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

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

@@ -294,7 +294,7 @@ public class AmqpMessageHandlerService extends BaseAmqpService {
 
     private Status hanldeCancelRejectedState(final Message message, final Action action) {
         if (action.isCancelingOrCanceled()) {
-            return Status.WARNING;
+            return Status.CANCEL_REJECTED;
         } else {
             logAndThrowMessageError(message,
                     "Cancel recjected message is not allowed, if action is on state: " + action.getStatus());