NRL-1582 Add completion window to rule foreach

Author: sandyforresternhs

terraform/account-wide-infrastructure/modules/backup-source/backup_plan.tf

@@ -11,6 +11,7 @@ resource "aws_backup_plan" "default" {
       rule_name                = rule.value.name
       target_vault_name        = aws_backup_vault.main.name
       schedule                 = rule.value.schedule
+      completion_window        = try(rule.value.completion_window, null)
       enable_continuous_backup = rule.value.enable_continuous_backup
       lifecycle {
         delete_after       = rule.value.lifecycle.delete_after
@@ -43,6 +44,7 @@ resource "aws_backup_plan" "dynamodb" {
       rule_name         = rule.value.name
       target_vault_name = aws_backup_vault.main.name
       schedule          = rule.value.schedule
+      completion_window = try(rule.value.completion_window, null)
       lifecycle {
         delete_after       = rule.value.lifecycle.delete_after
         cold_storage_after = rule.value.lifecycle.cold_storage_after