change regex security for z12c
variable "security" {
type = string
description = "The urbasec zone of the account"
validation {
condition = can(regex("^z[2-9]{1}|z1[0-9]?|z20**|12c**$", var.security))
error_message = "The urbasec zone must be in format: zi (with i between 1 and 20) (^z[2-9]{1}|z1[0-9]?|z20$|12c)."
}