chore(deps): update terraform github.com/terraform-ibm-modules/terraform-ibm-landing-zone to v8

Author: terraform-ibm-modules-ops

tests/resources/main.tf

@@ -3,7 +3,7 @@
 ##############################################################################
 
 module "landing_zone" {
-  source           = "git::https://github.com/terraform-ibm-modules/terraform-ibm-landing-zone//patterns//roks-quickstart?ref=v7.4.4"
+  source           = "git::https://github.com/terraform-ibm-modules/terraform-ibm-landing-zone//patterns//roks-quickstart?ref=v8.1.0"
   ibmcloud_api_key = var.ibmcloud_api_key
   region           = var.region
   prefix           = var.prefix