Add bq dataViewer to folder_additional_roles

Code in https://github.com/mozilla/terraform-modules/blob/main/google_permissions/other_roles.tf suggests this should be a role allowed to be added to `folder_roles` input

This roles absence from the locals defined here causes the error "You have specified an invalid folder role." to be raised when this option is attempted

google_permissions/outputs.tf

@@ -4,6 +4,7 @@ locals {
   // and that already have have existing supporting resource definitions.
   folder_additional_roles = [
     "roles/bigquery.jobUser",
+    "roles/bigquery.dataViewer",
     "roles/redis.admin",
     "roles/logging.admin",
     "roles/monitoring.alertPolicyEditor",