chore: update account id variable

Author: PriyeshM1

main.tf

@@ -12,7 +12,7 @@ module "notifications" {
   slack                     = local.slack
   sns_topic_name            = var.sns_topic_name
   tags                      = var.tags
-  accounts_id_to_name       = var.accounts_id_to_name
+  accounts_id_to_name_parameter_arn       = var.accounts_id_to_name_parameter_arn
   identity_center_start_url = var.identity_center_start_url
   identity_center_role      = var.identity_center_role
 }

variables.tf

@@ -67,8 +67,8 @@ variable "tags" {
   type        = map(string)
 }
 
-variable "accounts_id_to_name" {
-  description = "A mapping of account id and account name - used by notification lamdba to map an account ID to a human readable name"
+variable "accounts_id_to_name_parameter_arn" {
+  description = "The ARN of your parameter containing the your account ID to name mapping. This ARN will be attached to lambda execution role as a resource, therefore a valid resource must exist. e.g 'arn:aws:ssm:eu-west-2:0123456778:parameter/myorg/configmaps/accounts_id_to_name_mapping' to enable the lambda retrieve values from ssm."
   type        = map(string)
   default     = null
 }