[airflow] connections add

https://airflow.apache.org/docs/apache-airflow/2.5.1/howto/connection.html#creating-a-connection-from-the-cli

Managing Connections — Airflow Documentation

airflow connections add 'my_prod_db' \
    --conn-type 'my-conn-type' \
    --conn-login 'login' \
    --conn-password 'password' \
    --conn-host 'host' \
    --conn-port 'port' \
    --conn-schema 'schema' \
    ...