feat: use input parameter node_count as output parameter

Author: kpshjk

outputs.tf

@@ -66,4 +66,8 @@ output "public_outbound_ips" {
 output "managed_identity_object_id" {
   value       = azurerm_kubernetes_cluster.k8s.identity[0].principal_id
   description = "The object ID of the service principal of the managed identity of the AKS"
-}
+}
+
+output "node_count" {
+  value = var.node_count
+}