Add ``DaskExecutor`` queue handling change to ``UPDATING.md`` (#18720)
Add ``DaskExecutor`` queue handling change to ``UPDATING.md`` (#18720)

Add a note about the behavior change introduced in #16829.
nathanielvarona/airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,mistercrunch/airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,apache/incubator-airflow,cfei18/incubator-airflow,bolkedebruin/airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,nathanielvarona/airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,apache/airflow,apache/airflow,bolkedebruin/airflow,apache/airflow,apache/incubator-airflow,apache/incubator-airflow,nathanielvarona/airflow,nathanielvarona/airflow,bolkedebruin/airflow,apache/airflow,apache/airflow,lyft/incubator-airflow,lyft/incubator-airflow,lyft/incubator-airflow,Acehaidrey/incubator-airflow,lyft/incubator-airflow,apache/incubator-airflow,mistercrunch/airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,apache/airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,mistercrunch/airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,bolkedebruin/airflow,nathanielvarona/airflow,mistercrunch/airflow,danielvdende/incubator-airflow