fix: Correct Fargate profiles additional IAM role policies default ty…

…pe to match variable (terraform-aws-modules#2143)

node_groups.tf

@@ -218,7 +218,7 @@ module "fargate_profile" {
   iam_role_permissions_boundary = try(each.value.iam_role_permissions_boundary, var.fargate_profile_defaults.iam_role_permissions_boundary, null)
   iam_role_tags                 = try(each.value.iam_role_tags, var.fargate_profile_defaults.iam_role_tags, {})
   iam_role_attach_cni_policy    = try(each.value.iam_role_attach_cni_policy, var.fargate_profile_defaults.iam_role_attach_cni_policy, true)
-  iam_role_additional_policies  = try(each.value.iam_role_additional_policies, var.fargate_profile_defaults.iam_role_additional_policies, {})
+  iam_role_additional_policies  = try(each.value.iam_role_additional_policies, var.fargate_profile_defaults.iam_role_additional_policies, [])
 
   tags = merge(var.tags, try(each.value.tags, var.fargate_profile_defaults.tags, {}))
 }