feat: Enhance ArgoCD CLI: Dynamic Repo Server Retrieval with --core and --refresh Flags (#17613)

* add const key value for ComponentRepoServer

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* update NewRepoServerClient() to look for service with  ComponentRepoServer labels , if the label exist construct label selector PortForward

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* add comment for the new constants

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* instead of passing nil which leads to  nil ptr referance error, pass empty ClusterSharding{}

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* check for operator install repo server name

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* handle empty nil ptr dereference error

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* handle  nil prt dereference

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* typo correction

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

* run clidocsgen

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

---------

Signed-off-by: Mangaal <angommeeteimangaal@gmail.com>

common/common.go

@@ -188,6 +188,10 @@ const (
 	// AnnotationKeyAppSkipReconcile tells the Application to skip the Application controller reconcile.
 	// Skip reconcile when the value is "true" or any other string values that can be strconv.ParseBool() to be true.
 	AnnotationKeyAppSkipReconcile = "argocd.argoproj.io/skip-reconcile"
+	// LabelKeyComponentRepoServer is the label key to identify the component as repo-server
+	LabelKeyComponentRepoServer = "app.kubernetes.io/component"
+	// LabelValueComponentRepoServer is the label value for the repo-server component
+	LabelValueComponentRepoServer = "repo-server"
 )
 
 // Environment variables for tuning and debugging Argo CD