feat!: Implemented dynamic port allocation support (#46)

* Implemented dynamic port allocation support.

* fmt

* Bumped the minimum version for Google provider

Since support for dynamic port allocation was added in 4.22

Author: martijnvdgrift

nat.tf

@@ -34,6 +34,7 @@ resource "google_compute_router_nat" "nats" {
   tcp_established_idle_timeout_sec    = lookup(each.value, "tcp_established_idle_timeout_sec", null)
   tcp_transitory_idle_timeout_sec     = lookup(each.value, "tcp_transitory_idle_timeout_sec", null)
   enable_endpoint_independent_mapping = lookup(each.value, "enable_endpoint_independent_mapping", null)
+  enable_dynamic_port_allocation      = lookup(each.value, "enable_dynamic_port_allocation", null)
 
   log_config {
     enable = true

versions.tf

@@ -20,7 +20,7 @@ terraform {
 
     google = {
       source  = "hashicorp/google"
-      version = ">= 4.13, < 5.0"
+      version = ">= 4.22, < 5.0"
     }
   }