Update private endpoint network policies to use string type for priva…

…te_endpoint_network_policies_enabled variable

variables.tf

@@ -71,7 +71,7 @@ variable "subnet_config_delegated_aci" {
     subnet_name                                   = string
     subnet_address_space                          = list(string)
     service_endpoints                             = list(string)
-    private_endpoint_network_policies_enabled     = "Enabled"
+    private_endpoint_network_policies_enabled     = string
     private_link_service_network_policies_enabled = bool
     delegation_name                               = string
     delegation_service                            = string