[EASY] Bring back tracing spans for submission (#3014)

# Description
When we started to submit solutions in a background task with
#2986 the logs emitted from
the submission future lost all the tracing information of the run loop.
That means you can no longer easily grep for an auction id in the logs
and see the submission logs.

# Changes
Instruments the submission future with the current tracing span to bring
back the auction id and other data that is available while building the
future.

crates/autopilot/src/run_loop.rs

@@ -313,7 +313,8 @@ impl RunLoop {
                 }
             }
             Metrics::single_run_completed(single_run_start.elapsed());
-        };
+        }
+        .instrument(tracing::Span::current());
 
         let sender = self.get_settlement_queue_sender(&driver.name).await;
         if let Err(err) = sender.send(Box::pin(settle_fut)) {