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_POST_MORTEM = Arg(
    ("-m", "--post-mortem"), action="store_true", help="Open debugger on uncaught exception"
)
ARG_ENV_VARS = Arg(
    ("--env-vars",),
    help="Set env var in both parsing time and runtime for each of entry supplied in a JSON dict",
    type=json.loads,
)
# connections
ARG_CONN_ID = Arg(('conn_id',), help='Connection id, required to get/add/delete a connection', type=str)
ARG_CONN_ID_FILTER = Arg(
    ('--conn-id',), help='If passed, only items with the specified connection ID will be displayed', type=str
)
ARG_CONN_URI = Arg(
    ('--conn-uri',), help='Connection URI, required to add a connection without conn_type', type=str
)
ARG_CONN_TYPE = Arg(
    ('--conn-type',), help='Connection type, required to add a connection without conn_uri', type=str
)
ARG_CONN_DESCRIPTION = Arg(
    ('--conn-description',), help='Connection description, optional when adding a connection', type=str
)
ARG_CONN_HOST = Arg(('--conn-host',), help='Connection host, optional when adding a connection', type=str)
ARG_CONN_LOGIN = Arg(('--conn-login',), help='Connection login, optional when adding a connection', type=str)
ARG_CONN_PASSWORD = Arg(
    ('--conn-password',), help='Connection password, optional when adding a connection', type=str
)
ARG_CONN_SCHEMA = Arg(
    ('--conn-schema',), help='Connection schema, optional when adding a connection', type=str
)