Update versions.tf

Author: brdelphus

versions.tf

@@ -2,7 +2,7 @@ terraform {
   required_version = ">= 0.13"
 
   required_providers {
-    aws        = ">= 3.13, < 4.21"
+    aws        = ">= 3.13, < 4.22"
     helm       = ">= 1.0, < 3.0"
     kubernetes = ">= 1.10.0, < 3.0.0"
   }