log message update

provider/register-azure/src/main/java/org/opengroup/osdu/register/provider/azure/subscriber/SubscriptionRepository.java

@@ -127,7 +127,7 @@ public class SubscriptionRepository implements ISubscriptionRepository {
         }
         catch(AppException e) {
             if(e.getError().getCode() == 409) {
-                throw new AppException(409, "Conflict", "A subscriber already exists with the same topic and endpoint combination");
+                throw new AppException(409, "Conflict", "Another request is trying to create the same subscription");
             }
             try {
                 cosmosStore.deleteItem(dpsHeaders.getPartitionId(), azureBootstrapConfig.getCosmosDBName(), cosmosContainerConfig.getSubscriptionContainerName(), input.getId(), dpsHeaders.getPartitionId());