fix(versions): avoid deprecated resolve_conflicts warning by restrict…

…ing AWS provider version to <5.0

Since we don't want to bump the AWS provider version we're using, let's add a constraint the other way to avoid the warning.

ref: terraform-aws-modules#2680

versions.tf

@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 4.47"
+      version = ">= 4.47, < 5.0"
     }
     tls = {
       source  = "hashicorp/tls"