fix: Update postgres_sample_dag to set table extract job as upstream for...

fix: Update postgres_sample_dag to set table extract job as upstream for elastic search publisher (#340)
Signed-off-by: Alagappan Sethuraman <alagappan.als@gmail.com>

example/dags/postgres_sample_dag.py

@@ -170,3 +170,6 @@ with DAG('amundsen_databuilder', default_args=default_args, **dag_args) as dag:
         task_id='create_es_publisher_sample_job',
         python_callable=create_es_publisher_sample_job
     )
+
+    # elastic search update run after table metadata has been updated
+    create_table_extract_job >> create_es_index_job