fix jenkinsfile

Jenkinsfile

@@ -34,7 +34,8 @@ pipeline {
                     sh "chmod +x download_dataset.sh"
                     sh "./download_dataset.sh $DATA_TRAIN_RATIO"
                     archiveArtifacts artifacts: 'data.csv,train.csv,test.csv', onlyIfSuccessful: true
+                    }
             }
         }
     }
-}
+}