feat: Added multiple SSH Key uploads

infra/modules/prod/variables.tf

@@ -13,9 +13,9 @@ variable "location" {
   type        = string
 }
 
-variable "ssh_key_id" {
-  description = "ID of the Hetzner Cloud SSH key to install on the server."
-  type        = string
+variable "ssh_key_ids" {
+  description = "IDs of the Hetzner Cloud SSH keys to install on the server."
+  type        = list(string)
 }
 
 variable "network_id" {
@@ -49,6 +49,6 @@ variable "bootstrap_script" {
 }
 
 variable "ssh_private_key_path" {
-  description = "Local path to the private key matching var.ssh_key_id, used to run the bootstrap script over SSH."
+  description = "Local path to the private key matching one of var.ssh_key_ids, used to run the bootstrap script over SSH."
   type        = string
 }