Uncomment annotation change

Uncomment change of annotation for the case when more resources have
been estimated, but there is no lag. Without this annotation update,
instances could be stuck in "PENDING_SCALING_UP".

controllers/operator.go

@@ -434,10 +434,7 @@ func (o *operator) estimateDeploy(deploy *appsv1.Deployment) (*appsv1.Deployment
 					logHeadline = fmt.Sprintf("No action. More resources estimated, but instance is SATURATED")
 				}
 			} else {
-				// XXX: changing annotation here doesn't make any sense.
-				// current state is: pod is running, no lag detected, but estimations thinks that it needs more resources
-				// this leads to changing state from RUNNING to SATURATED ?!
-				// isChangedAnnotations = o.updateScaleAnnotations(deploy, underProvision)
+				isChangedAnnotations = o.updateScaleAnnotations(deploy, underProvision)
 				logHeadline = fmt.Sprintf("No action. More resources estimated, but no lag detected")
 			}
 		case cmpResourcesLt: