K8s: Folders: Modify GetChildren to return only Folder References (#103072)

* Return FolderReference instead of Folder on GetChildren

Signed-off-by: Maicon Costa <maiconscosta@gmail.com>

---------

Signed-off-by: Maicon Costa <maiconscosta@gmail.com>

pkg/services/ngalert/models/alert_rule.go

@@ -320,7 +320,7 @@ type Namespaced interface {
 	GetNamespaceUID() string
 }
 
-type Namespace folder.Folder
+type Namespace folder.FolderReference
 
 func (n Namespace) GetNamespaceUID() string {
 	return n.UID

pkg/services/ngalert/models/testing.go

@@ -298,7 +298,7 @@ func (a *AlertRuleMutators) WithNamespaceUID(namespaceUID string) AlertRuleMutat
 	}
 }
 
-func (a *AlertRuleMutators) WithNamespace(namespace *folder.Folder) AlertRuleMutator {
+func (a *AlertRuleMutators) WithNamespace(namespace *folder.FolderReference) AlertRuleMutator {
 	return a.WithNamespaceUID(namespace.UID)
 }