Hello,

Our Helm Chart uses the command that is deleted in Airflow 2.0. We should consider what we want to do with it - add this command again or delete the reference to this command in the Helm Chart.
https://github.com/apache/airflow/blob/d41c6a46b176a80e1cdb0bcc592f5a8baec21c41/chart/templates/scheduler/scheduler-deployment.yaml#L177-L197
Related PR: 
https://github.com/apache/airflow/pull/6843

Best regards,
Kamil Breguła
CC: @dstandish 
airflow/cli/cli_parser.py
ARG_IGNORE_DEPENDS_ON_PAST = Arg(
    ("-I", "--ignore-depends-on-past"),
    help="Ignore depends_on_past dependencies (but respect upstream dependencies)",
    action="store_true",
)
ARG_SHIP_DAG = Arg(
    ("--ship-dag",), help="Pickles (serializes) the DAG and ships it to the worker", action="store_true"
)
ARG_PICKLE = Arg(("-p", "--pickle"), help="Serialized pickle object of the entire dag (used internally)")
ARG_ERROR_FILE = Arg(("--error-file",), help="File to store task failure error")
ARG_JOB_ID = Arg(("-j", "--job-id"), help=argparse.SUPPRESS)
ARG_CFG_PATH = Arg(("--cfg-path",), help="Path to config file to use instead of airflow.cfg")
ARG_MIGRATION_TIMEOUT = Arg(
    ("-t", "--migration-wait-timeout"),
    help="timeout to wait for db to migrate ",
    type=int,
    default=0,
)
ARG_PORT = Arg(
    ("-p", "--port"),
    default=conf.get('webserver', 'WEB_SERVER_PORT'),
    type=int,
    help="The port on which to run the server",
)
ARG_SSL_CERT = Arg(
    ("--ssl-cert",),
    default=conf.get('webserver', 'WEB_SERVER_SSL_CERT'),
    help="Path to the SSL certificate for the webserver",
)
ARG_SSL_KEY = Arg(