fix: error in tests

Author: Jordan-Williams2

tests/resources/outputs.tf

@@ -27,6 +27,11 @@ output "workload_cluster_crn" {
   description = "CRN of the workload cluster."
 }
 
+output "cluster_resource_group_id" {
+  value       = local.cluster_resource_group_id
+  description = "Resource group ID of the workload cluster."
+}
+
 output "trusted_profile_id" {
   value       = module.trusted_profile.trusted_profile.id
   description = "The ID of the trusted profile."