fix typo in logs

Signed-off-by: Jorge Turrado <jorge_turrado@hotmail.es>

apis/keda/v1alpha1/scaledobject_webhook.go

@@ -97,7 +97,7 @@ func validateWorkload(so *ScaledObject) error {
 			hpaTarget.Name == soTarget.Name {
 			labels := hpa.GetLabels()
 			if val, ok := labels[ScaledObjectOwnerAnnotation]; !ok || val != so.Name {
-				err := fmt.Errorf("the workload %s of type %s/%s is already managed by the hpa %s, and it isn't managed by this scaledobject", soTarget.Name, soTarget.APIVersion, soTarget.Kind, hpa.Name)
+				err := fmt.Errorf("the workload %s of type %s/%s is already managed by the hpa %s, and it isn't managed by this scaledobject", soTarget.Name, soTargetAPI, soTargetKind, hpa.Name)
 				scaledobjectlog.Error(err, "validation error")
 				return err
 			}