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_END_DATE = Arg(("-e", "--end-date"), help="Override end_date YYYY-MM-DD", type=parsedate)
ARG_OUTPUT_PATH = Arg(
    (
        "-o",
        "--output-path",
    ),
    help="The output for generated yaml files",
    type=str,
    default="[CWD]" if BUILD_DOCS else os.getcwd(),
)
ARG_DRY_RUN = Arg(
    ("-n", "--dry-run"),
    help="Perform a dry run for each task. Only renders Template Fields for each task, nothing else",
    action="store_true",
)
ARG_PID = Arg(("--pid",), help="PID file location", nargs='?')
ARG_DAEMON = Arg(
    ("-D", "--daemon"), help="Daemonize instead of running in the foreground", action="store_true"
)
ARG_STDERR = Arg(("--stderr",), help="Redirect stderr to this file")
ARG_STDOUT = Arg(("--stdout",), help="Redirect stdout to this file")
ARG_LOG_FILE = Arg(("-l", "--log-file"), help="Location of the log file")
ARG_YES = Arg(
    ("-y", "--yes"), help="Do not prompt to confirm reset. Use with care!", action="store_true", default=False
)
ARG_OUTPUT = Arg(
    (
        "-o",
        "--output",
    ),