Fixing property reference

terraform/aad_group_membership.tf

@@ -1,6 +1,6 @@
 resource "azuread_group_member" "group_membership" {
   for_each = { for each in var.sql_admin_aad_group_members : each => each }
 
-  group_object_id  = azuread_group.sql_admin_group.id
+  group_object_id  = azuread_group.sql_admin_group.object_id
   member_object_id = data.azuread_service_principal.workload[each.value].object_id
 }