chore(terraform): update google version to be less restrictive (#11)

Author: camlough

versions.tf

@@ -4,7 +4,7 @@ terraform {
   required_providers {
     google = {
       source  = "hashicorp/google"
-      version = "5.16.0"
+      version = ">=5.16.0, <7.0.0"
     }
   }
 }