

**Description**

We are using a 3rd party executor which has the ability to use multiple queues, however the `default_queue` is defined under the `celery` heading and is used regardless of the executor that you are using.

See: https://github.com/apache/airflow/blob/2.0.1/airflow/models/baseoperator.py#L366

It would be nice to decouple the default_queue configuration argument away from the celery section to allow other executors to utilise this functionality with less confusion.

**Are you willing to submit a PR?**

Yep! Will open a pull request shortly


**Related Issues**

Not that I'm aware of.

airflow/cli/cli_parser.py
ARG_BF_IGNORE_DEPENDENCIES,
            ARG_BF_IGNORE_FIRST_DEPENDS_ON_PAST,
            ARG_SUBDIR,
            ARG_POOL,
            ARG_DELAY_ON_LIMIT,
            ARG_DRY_RUN,
            ARG_VERBOSE,
            ARG_CONF,
            ARG_RESET_DAG_RUN,
            ARG_RERUN_FAILED_TASKS,
            ARG_RUN_BACKWARDS,
        ),
    ),
    ActionCommand(
        name='test',
        help="Execute one single DagRun",
        description=(
            "Execute one single DagRun for a given DAG and execution date, "
            "using the DebugExecutor.\n"
            "\n"
            "The --imgcat-dagrun option only works in iTerm.\n"
            "\n"
            "For more information, see: https://www.iterm2.com/documentation-images.html\n"
            "\n"
            "If --save-dagrun is used, then, after completing the backfill, saves the diagram "
            "for current DAG Run to the indicated file.\n"
            "The file format is determined by the file extension. "
            "For more information about supported format, "
            "see: https://www.graphviz.org/doc/info/output.html\n"
            "\n"