Move to the London region.

SMS sending fails ALL OF THE  TIME. Try a different region that may work
better with my israeli phone number.

main.tf

@@ -23,7 +23,7 @@ output "module" {
 }
 
 variable "region" {
-  default     = "us-east-1"
+  default     = "eu-west-2"
   description = "AWS region."
   type        = string
 }