fix(gcp): convert list to set for gcs-lb-domain project service resource

Author: 01walid

modules/gcp/gcs-lb-domain/main.tf

@@ -2,7 +2,7 @@
 
 # Enable the services needed for this module
 resource "google_project_service" "services" {
-  for_each           = local.services
+  for_each           = toset(local.services)
   project            = data.google_client_config.current.project
   service            = each.value
   disable_on_destroy = false