set provider version constraint (#31)

Author: saidsef

versions.tf

@@ -2,12 +2,12 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 4"
+      version = ">= 4, < 6"
     }
 
     tls = {
       source  = "hashicorp/tls"
-      version = ">= 4"
+      version = ">= 4, < 6"
     }
   }