Update batch_test.py

batch_test.py

 from datetime import datetime, timedelta
 from textwrap import dedent
+import pendulum
 
 # The DAG object; we'll need this to instantiate a DAG
 from airflow import DAG
 
+local_tz = pendulum.timezone("Asia/Seoul")
+
 # Operators; we need this to operate!
 from airflow.operators.bash import BashOperator
 with DAG(