Fix direct use of cached_property module. (#16710)
Fix direct use of cached_property module. (#16710)

On Python 3.8 and 3.9 we use the built in functools decorator for this.
nathanielvarona/airflow,dhuang/incubator-airflow,nathanielvarona/airflow,lyft/incubator-airflow,bolkedebruin/airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,apache/airflow,apache/incubator-airflow,bolkedebruin/airflow,lyft/incubator-airflow,apache/airflow,mistercrunch/airflow,lyft/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,apache/airflow,bolkedebruin/airflow,danielvdende/incubator-airflow,apache/incubator-airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,bolkedebruin/airflow,apache/airflow,danielvdende/incubator-airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,mistercrunch/airflow,dhuang/incubator-airflow,mistercrunch/airflow,apache/incubator-airflow,apache/incubator-airflow,lyft/incubator-airflow,apache/airflow,Acehaidrey/incubator-airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,mistercrunch/airflow,apache/airflow,Acehaidrey/incubator-airflow,nathanielvarona/airflow,bolkedebruin/airflow