refactor: make ssh keys to be a list

main.tf

@@ -43,7 +43,7 @@ resource "proxmox_virtual_environment_vm" "this" {
 
     user_account {
       username = "debian"
-      keys     = [var.ssh_public_key]
+      keys     = var.ssh_public_keys
     }
   }
 }

variables.tf

@@ -13,9 +13,9 @@ variable "ip_address" {
   type        = string
 }
 
-variable "ssh_public_key" {
-  description = "Public SSH key for the admin user"
-  type        = string
+variable "ssh_public_keys" {
+  description = "List of public SSH keys for the admin user"
+  type        = list(string)
 }
 
 variable "gateway" {