Update sqlalchemy_jsonfield to avoid pkgresources use (#13032)
Update sqlalchemy_jsonfield to avoid pkgresources use (#13032)

The previous version of sqlalchemy_jsonfield imported pkg_resources
which slowed down a lot of things. They have just released 1.0.0 with
that change.
DinoCow/airflow,dhuang/incubator-airflow,Acehaidrey/incubator-airflow,mistercrunch/airflow,nathanielvarona/airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,apache/incubator-airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,dhuang/incubator-airflow,bolkedebruin/airflow,apache/airflow,sekikn/incubator-airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,apache/airflow,nathanielvarona/airflow,sekikn/incubator-airflow,DinoCow/airflow,airbnb/airflow,Acehaidrey/incubator-airflow,apache/incubator-airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,dhuang/incubator-airflow,cfei18/incubator-airflow,apache/incubator-airflow,bolkedebruin/airflow,lyft/incubator-airflow,nathanielvarona/airflow,sekikn/incubator-airflow,apache/incubator-airflow,mistercrunch/airflow,lyft/incubator-airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,bolkedebruin/airflow,apache/airflow,apache/airflow,airbnb/airflow,apache/airflow,nathanielvarona/airflow,DinoCow/airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,mistercrunch/airflow,airbnb/airflow,apache/airflow,danielvdende/incubator-airflow,Acehaidrey/incubator-airflow,sekikn/incubator-airflow,lyft/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,lyft/incubator-airflow,cfei18/incubator-airflow,mistercrunch/airflow,airbnb/airflow,DinoCow/airflow,danielvdende/incubator-airflow,bolkedebruin/airflow