fixup! AWS VPC setup.

Terraform/AWS/vpc.tf

@@ -270,7 +270,7 @@ resource "aws_route_table" "private" {
 
   route {
     cidr_block     = "0.0.0.0/0"
-    nat_gateway_id = each.key
+    nat_gateway_id = each.value.id
   }
 }