Remove "@" references from constraints generattion (#12671)
Remove "@" references from constraints generattion (#12671)

Likely fixes: #12665
mistercrunch/airflow,airbnb/airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,mistercrunch/airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,airbnb/airflow,mistercrunch/airflow,Acehaidrey/incubator-airflow,airbnb/airflow,apache/incubator-airflow,dhuang/incubator-airflow,nathanielvarona/airflow,lyft/incubator-airflow,danielvdende/incubator-airflow,DinoCow/airflow,nathanielvarona/airflow,nathanielvarona/airflow,cfei18/incubator-airflow,DinoCow/airflow,apache/airflow,apache/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,bolkedebruin/airflow,danielvdende/incubator-airflow,airbnb/airflow,sekikn/incubator-airflow,DinoCow/airflow,lyft/incubator-airflow,sekikn/incubator-airflow,apache/airflow,bolkedebruin/airflow,apache/airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,mistercrunch/airflow,apache/incubator-airflow,danielvdende/incubator-airflow,sekikn/incubator-airflow,bolkedebruin/airflow,bolkedebruin/airflow,lyft/incubator-airflow,nathanielvarona/airflow,apache/airflow,sekikn/incubator-airflow,dhuang/incubator-airflow,danielvdende/incubator-airflow,lyft/incubator-airflow,apache/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,DinoCow/airflow,apache/airflow,apache/airflow