[BUG] The calculation method of daemonset UpdatedNumberScheduled value is inaccurate

[zcz-1020]

What happened:
The updatedNumberScheduled count is to select the pod with index 0 after sorting the daemon pods on the node. However, if there are two daemon pods on the node (one before and one after the update and both have been scheduled), the pod before the update will be selected, but the updated pod on this node is not counted. In this case, the updatedNumberScheduled value cannot truly reflect the number of updates.

`func (dsc *ReconcileDaemonSet) updateDaemonSetStatus(ctx context.Context, ds *appsv1alpha1.DaemonSet, nodeList []*corev1.Node, hash string, updateObservedGen bool) error {
now := dsc.failedPodsBackoff.Clock.Now()
for _, node := range nodeList {

	if shouldRun {
		desiredNumberScheduled++
		if scheduled {
			currentNumberScheduled++
			// Sort the daemon pods by creation time, so that the oldest is first.
			daemonPods := nodeToDaemonPods[node.Name]
			sort.Sort(podByCreationTimestampAndPhase(daemonPods))
			pod := daemonPods[0]
                             
			generation, err := GetTemplateGeneration(ds)
			if err != nil {
				generation = nil
			}
			if util.IsPodUpdated(pod, hash, generation) {
				updatedNumberScheduled++
			}
		}
	} else {
		if scheduled {
			numberMisscheduled++
		}
	}
}
    
return nil

}`

What you expected to happen:
When calculating updatedNumberScheduled, traverse the pods on the node

for _, p := range daemonPods { if util.IsPodUpdated(p, hash, generation) { updatedNumberScheduled++ break } }

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

Environment:

• Kruise version: 1.7.2
• Kubernetes version (use kubectl version):
• Install details (e.g. helm install args):
• Others: