Add room_version argument and reorg convert_outgoing_federation_event.

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/server/event_auth.rs

@@ -48,11 +48,7 @@ pub(crate) async fn get_event_authorization_route(
 		.event_ids_iter(room_id, once(body.event_id.borrow()))
 		.ready_filter_map(Result::ok)
 		.filter_map(async |id| services.timeline.get_pdu_json(&id).await.ok())
-		.then(|pdu| {
-			services
-				.sending
-				.convert_to_outgoing_federation_event(pdu)
-		})
+		.then(|pdu| services.federation.format_pdu_into(pdu, None))
 		.collect()
 		.await;