changing for each to use a map

Author: chelseyklein

terraform/modules/aws-groups/main.tf

@@ -6,7 +6,7 @@ resource "aws_iam_group" "group" {
 }
 
 resource "aws_iam_group_policy_attachment" "group_policy_attachment" {
-  for_each   = toset(var.policy_arn)
+  for_each   = var.policy_arn
   group      = aws_iam_group.group.name
   policy_arn = each.value
 }