Update download url for Airflow Version (#11800)
Update download url for Airflow Version (#11800)

All the versions are available at https://archive.apache.org/dist/airflow/ and this link appears in https://pypi.org/project/apache-airflow/
apache/airflow,airbnb/airflow,apache/airflow,mrkm4ntr/incubator-airflow,Acehaidrey/incubator-airflow,sekikn/incubator-airflow,airbnb/airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,DinoCow/airflow,DinoCow/airflow,nathanielvarona/airflow,DinoCow/airflow,sekikn/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,mrkm4ntr/incubator-airflow,bolkedebruin/airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,lyft/incubator-airflow,mrkm4ntr/incubator-airflow,dhuang/incubator-airflow,bolkedebruin/airflow,bolkedebruin/airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,mistercrunch/airflow,danielvdende/incubator-airflow,Acehaidrey/incubator-airflow,apache/incubator-airflow,airbnb/airflow,apache/incubator-airflow,airbnb/airflow,DinoCow/airflow,mistercrunch/airflow,mistercrunch/airflow,apache/airflow,sekikn/incubator-airflow,Acehaidrey/incubator-airflow,apache/incubator-airflow,apache/airflow,cfei18/incubator-airflow,lyft/incubator-airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,lyft/incubator-airflow,danielvdende/incubator-airflow,dhuang/incubator-airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,apache/airflow,mistercrunch/airflow,sekikn/incubator-airflow,apache/airflow,apache/incubator-airflow,bolkedebruin/airflow,lyft/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,nathanielvarona/airflow,mrkm4ntr/incubator-airflow,bolkedebruin/airflow,nathanielvarona/airflow