Fix mypy errors in asana example dags (#20593)
Fix mypy errors in asana example dags (#20593)


nathanielvarona/airflow,apache/airflow,nathanielvarona/airflow,apache/airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,bolkedebruin/airflow,bolkedebruin/airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,lyft/incubator-airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,lyft/incubator-airflow,apache/airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,apache/airflow,danielvdende/incubator-airflow,mistercrunch/airflow,nathanielvarona/airflow,mistercrunch/airflow,apache/airflow,nathanielvarona/airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,lyft/incubator-airflow,nathanielvarona/airflow,mistercrunch/airflow,cfei18/incubator-airflow,nathanielvarona/airflow,mistercrunch/airflow,bolkedebruin/airflow,apache/airflow,lyft/incubator-airflow,bolkedebruin/airflow