Add retagging images accross repos (#19778)
Add retagging images accross repos (#19778)

Useful to refresh cache images to a different repository - in
order to speed up builds there.
danielvdende/incubator-airflow,mistercrunch/airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,apache/airflow,apache/airflow,mistercrunch/airflow,cfei18/incubator-airflow,lyft/incubator-airflow,apache/airflow,bolkedebruin/airflow,bolkedebruin/airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,lyft/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,nathanielvarona/airflow,apache/airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,apache/airflow,lyft/incubator-airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,bolkedebruin/airflow,bolkedebruin/airflow,lyft/incubator-airflow,mistercrunch/airflow,danielvdende/incubator-airflow,apache/airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,mistercrunch/airflow,nathanielvarona/airflow,nathanielvarona/airflow,cfei18/incubator-airflow,bolkedebruin/airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow