fix: add back required depends on to DA to fix race condition (#288)

Author: ocofaigh

solutions/fully-configurable/main.tf

@@ -189,6 +189,7 @@ data "ibm_en_destinations" "en_destinations" {
 
 resource "ibm_en_topic" "en_topic" {
   count         = var.enable_event_notifications ? 1 : 0
+  depends_on    = [module.app_config]
   instance_guid = local.existing_en_guid
   name          = "Topic for App Configuration instance ${module.app_config.app_config_guid}"
   description   = "Topic for App Configuration events routing"