[META][Kubernetes provider/Kubernetes module] Set watcher options node based on configuration #40246

We need to do similar work for node as we did for namespace in this issue.

• [Beats] In beats, check node option is being taken into consideration. For example, the watcher is not using the node option for deployment:
  

  beats/libbeat/autodiscover/providers/kubernetes/pod.go

  Lines 128 to 133 in 269d319

  	if metaConf.Deployment {
  	replicaSetWatcher, err = kubernetes.NewNamedWatcher("resource_metadata_enricher_rs", client, &kubernetes.ReplicaSet{}, kubernetes.WatchOptions{
  	SyncTimeout: config.SyncPeriod,
  	Namespace: config.Namespace,
  	HonorReSyncs: true,
  	}, nil)

• [Beats] Check add_kubernetes_metadata node option as well
• [Beats] Update documentation
• [Elastic Agent] Check the Kubernetes provider uses the node option
• [Integrations] Put the node option at group level, similar as we did for namespace here.