style: Improve logging

src/service/rooms/event_handler/handle_incoming_pdu.rs

@@ -108,7 +108,6 @@ impl super::Service {
 	///     room, if not soft fail it
 	#[tracing::instrument(
 	name = "pdu",
-	level = INFO_SPAN_LEVEL,
 	skip_all,
 	fields(%room_id, %event_id),
 	)]

src/service/rooms/event_handler/upgrade_outlier_pdu.rs

@@ -392,6 +392,7 @@ impl super::Service {
 			self.services
 				.metadata
 				.set_mindepth(room_id, incoming_pdu.depth.into());
+			trace!("Increased room's min depth from {} to {}", min_depth, incoming_pdu.depth);
 		}
 
 		Ok(pdu_id)