message: op-node: Fix log message when bq does not match safe head
  The L2 head was being logged rather than the safe head's L1 origin.
diff: @@ -148,7 +148,7 @@ func (bq *BatchQueue) deriveNextBatch(ctx context.Context, outOfData bool, l2Saf
  epoch := bq.l1Blocks[0]
  if l2SafeHead.L1Origin != epoch.ID() {
  - return nil, NewResetError(fmt.Errorf("buffered L1 chain epoch %s in batch queue does not match safe head %s", epoch, l2SafeHead))
  + return nil, NewResetError(fmt.Errorf("buffered L1 chain epoch %s in batch queue does not match safe head origin %s", epoch, l2SafeHead.L1Origin))
  }
  // Find the first-seen batch that matches all validity conditions.
  