fix:change in count condition with null

outputs.tf

@@ -1,19 +1,19 @@
 output "resource_group_id" {
-  value       = try(azurerm_resource_group.default[0].id, "")
+  value       = try(azurerm_resource_group.default[0].id, null)
   description = "The ID of the Resource Group."
 }
 
 output "resource_group_name" {
-  value       = try(azurerm_resource_group.default[0].name, "")
+  value       = try(azurerm_resource_group.default[0].name, null)
   description = "The Name which should be used for this Resource Group. Changing this forces a new Resource Group to be created."
 }
 
 output "resource_group_location" {
-  value       = try(azurerm_resource_group.default[0].location, "")
+  value       = try(azurerm_resource_group.default[0].location, null)
   description = "The Azure Region where the Resource Group should exist. Changing this forces a new Resource Group to be created."
 }
 
 output "tags" {
-  value       = try(module.labels.tags, "")
+  value       = try(module.labels.tags, null)
   description = "A mapping of tags which should be assigned to the Resource Group."
 }