fix(vpc): revert vpc eip type change and update the version constrain…

…ts for eip type (#17)

main.tf

@@ -114,7 +114,7 @@ resource "aws_route" "ingw" {
 resource "aws_eip" "ingw" {
   for_each = !local.default_vpc && local.private ? (local.single_ngw ? toset([local.selected_az]) : toset(local.azs)) : toset([])
   tags     = merge(local.default-tags, var.tags, )
-  domain   = "vpc"
+  vpc      = true
 }
 
 resource "aws_nat_gateway" "ingw" {

versions.tf

@@ -0,0 +1,15 @@
+## requirements
+
+terraform {
+  # Terraform test is an experimental features introduced in Terraform CLI v0.15.0.
+  # So, you'll need to upgrade to v0.15.0 or later to use terraform test.
+  required_version = ">= 0.15"
+
+  # The 'domain' parameter was migrated from a 'Computed' attribute to an input attribute in the aws_eip resource in version 5.0.0
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 4.16"
+    }
+  }
+}