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
help="Checks if job(s) are still alive",
        func=lazy_load_command('airflow.cli.commands.jobs_command.check'),
        args=(ARG_JOB_TYPE_FILTER, ARG_JOB_HOSTNAME_FILTER, ARG_JOB_LIMIT, ARG_ALLOW_MULTIPLE),
        epilog=(
            'examples:\n'
            'To check if the local scheduler is still working properly, run:\n'
            '\n'
            '    $ airflow jobs check --job-type SchedulerJob --hostname "$(hostname)"\n'
            '\n'
            'To check if any scheduler is running when you are using high availability, run:\n'
            '\n'
            '    $ airflow jobs check --job-type SchedulerJob --allow-multiple --limit 100'
        ),
    ),
)
airflow_commands: List[CLICommand] = [
    GroupCommand(
        name='dags',
        help='Manage DAGs',
        subcommands=DAGS_COMMANDS,
    ),
    GroupCommand(
        name="kubernetes", help='Tools to help run the KubernetesExecutor', subcommands=KUBERNETES_COMMANDS
    ),
    GroupCommand(
        name='tasks',
        help='Manage tasks',
        subcommands=TASKS_COMMANDS,
    ),
    GroupCommand(