### 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/cli_parser.py
),
    GroupCommand(
        name="kubernetes", help='Tools to help run the KubernetesExecutor', subcommands=KUBERNETES_COMMANDS
    ),
    GroupCommand(
        name='tasks',
        help='Manage tasks',
        subcommands=TASKS_COMMANDS,
    ),
    GroupCommand(
        name='pools',
        help="Manage pools",
        subcommands=POOLS_COMMANDS,
    ),
    GroupCommand(
        name='variables',
        help="Manage variables",
        subcommands=VARIABLES_COMMANDS,
    ),
    GroupCommand(
        name='jobs',
        help="Manage jobs",
        subcommands=JOBS_COMMANDS,
    ),
    GroupCommand(
        name='db',
        help="Database operations",
        subcommands=DB_COMMANDS,
    ),
    ActionCommand(