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
ActionCommand(
        name='state',
        help="Get the status of a task instance",
        func=lazy_load_command('airflow.cli.commands.task_command.task_state'),
        args=(ARG_DAG_ID, ARG_TASK_ID, ARG_EXECUTION_DATE, ARG_SUBDIR, ARG_VERBOSE),
    ),
    ActionCommand(
        name='failed-deps',
        help="Returns the unmet dependencies for a task instance",
        description=(
            "Returns the unmet dependencies for a task instance from the perspective of the scheduler. "
            "In other words, why a task instance doesn't get scheduled and then queued by the scheduler, "
            "and then run by an executor."
        ),
        func=lazy_load_command('airflow.cli.commands.task_command.task_failed_deps'),
        args=(ARG_DAG_ID, ARG_TASK_ID, ARG_EXECUTION_DATE, ARG_SUBDIR),
    ),
    ActionCommand(
        name='render',
        help="Render a task instance's template(s)",
        func=lazy_load_command('airflow.cli.commands.task_command.task_render'),
        args=(ARG_DAG_ID, ARG_TASK_ID, ARG_EXECUTION_DATE, ARG_SUBDIR, ARG_VERBOSE),
    ),
    ActionCommand(
        name='run',
        help="Run a single task instance",
        func=lazy_load_command('airflow.cli.commands.task_command.task_run'),
        args=(
            ARG_DAG_ID,
            ARG_TASK_ID,