fix: use guid for selectedCapacityPlan in MQ deployment

Author: Naimabdelkefi

modules/mq-instance/main.tf

@@ -8,7 +8,7 @@ locals {
   split_capacity_crn        = var.existing_mq_capacity_crn != null ? split(":", var.existing_mq_capacity_crn) : []
   existing_mq_capacity_guid = length(local.split_capacity_crn) >= 8 ? local.split_capacity_crn[7] : null
 
-  mq_capacity_guid = var.existing_mq_capacity_crn != null ? local.existing_mq_capacity_guid : ibm_resource_instance.mqcloud_capacity[0].id
+  mq_capacity_guid = var.existing_mq_capacity_crn != null ? local.existing_mq_capacity_guid : ibm_resource_instance.mqcloud_capacity[0].guid
   capacity_plan    = var.subscription_id == null ? "reserved-capacity" : "reserved-capacity-subscription"
 }