Improve terraform configs

Allow string ports to set port range in hcloud firewall

modules/infrastructure/healthchecksio.tf

@@ -28,7 +28,7 @@ resource "healthchecksio_check" "backup" {
   ]
 
   timeout = 86400
-  grace = 1800
+  grace = 3600
 }
 
 resource "healthchecksio_check" "healthcheck" {

modules/infrastructure/variables.tf

@@ -24,7 +24,7 @@ variable "services" {
     })))
     ports = optional(list(object({
       description = string
-      port = number
+      port = string
       protocol = string
       type = string
     })))

variables.tf

@@ -153,7 +153,7 @@ variable "services" {
     }))
     ports = optional(list(object({
       description = string
-      port = number
+      port = string
       protocol = string
       type = string
     })))