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
args=(
            ARG_OUTPUT,
            ARG_VERBOSE,
        ),
    ),
    ActionCommand(
        name='hooks',
        help='List registered provider hooks',
        func=lazy_load_command('airflow.cli.commands.provider_command.hooks_list'),
        args=(ARG_OUTPUT, ARG_VERBOSE),
    ),
    ActionCommand(
        name='behaviours',
        help='Get information about registered connection types with custom behaviours',
        func=lazy_load_command('airflow.cli.commands.provider_command.connection_field_behaviours'),
        args=(ARG_OUTPUT, ARG_VERBOSE),
    ),
)
USERS_COMMANDS = (
    ActionCommand(
        name='list',
        help='List users',
        func=lazy_load_command('airflow.cli.commands.user_command.users_list'),
        args=(ARG_OUTPUT, ARG_VERBOSE),
    ),
    ActionCommand(
        name='create',
        help='Create a user',
        func=lazy_load_command('airflow.cli.commands.user_command.users_create'),
        args=(