### Description

Recently, we added [a new DAG dependencies view](https://github.com/apache/airflow/pull/13199) to the webserver. It would be helpful if a similar diagram could also be displayed/generated using the CLI. For now, only [one DAG can be displayed](http://airflow.apache.org/docs/apache-airflow/stable/usage-cli.html#exporting-dag-structure-as-an-image) using CLI.
![image](https://user-images.githubusercontent.com/12058428/137945580-6a33f919-2648-4980-bd2c-b40cfcacc9fe.png)

If anyone is interested, I will be happy to help with the review.

### Use case/motivation

* Keep parity between CLI and web serwer.
* Enable the writing of scripts that use these diagrams, e.g. for attaching in the documentation.

### Related issues

https://github.com/apache/airflow/pull/13199/files

### Are you willing to submit a PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

airflow/cli/commands/dag_command.py
from airflow.utils import cli as cli_utils
from airflow.utils.cli import (
    get_dag,
    get_dag_by_file_location,
    process_subdir,
    sigint_handler,
    suppress_logs_and_warning,
)
from airflow.utils.dot_renderer import render_dag
from airflow.utils.session import create_session, provide_session
from airflow.utils.state import State
@cli_utils.action_logging
def dag_backfill(args, dag=None):
    """Creates backfill job or dry run for a DAG"""
    logging.basicConfig(level=settings.LOGGING_LEVEL, format=settings.SIMPLE_LOG_FORMAT)
    signal.signal(signal.SIGTERM, sigint_handler)
    import warnings
    warnings.warn(
        '--ignore-first-depends-on-past is deprecated as the value is always set to True',
        category=PendingDeprecationWarning,
    )
    if args.ignore_first_depends_on_past is False:
        args.ignore_first_depends_on_past = True
    if not args.start_date and not args.end_date:
        raise AirflowException("Provide a start_date and/or end_date")
    dag = dag or get_dag(args.subdir, args.dag_id)
    
    args.end_date = args.end_date or args.start_date
    args.start_date = args.start_date or args.end_date
    if args.task_regex: