Do not close log file immediately

pew.go

@@ -564,7 +564,10 @@ func (cmd PewCmd) testArtifact(swg *sizedwaitgroup.SizedWaitGroup,
 		log.Error().Err(err).Msgf("create %s", logfile)
 		return
 	}
-	defer f.Close()
+	defer func() {
+		time.Sleep(time.Minute) // FIXME
+		f.Close()
+	}()
 
 	slog := zerolog.New(zerolog.MultiLevelWriter(
 		&consoleWriter,