https://github.com/apache/airflow/pull/27892 added Internal API as part of Webserver.

We need to introduce `airlfow internal-api` CLI command that starts Internal API as a independent component.
func=lazy_load_command("airflow.cli.commands.user_command.users_create"),
        args=(
            ARG_ROLE,
            ARG_USERNAME,
            ARG_EMAIL,
            ARG_FIRSTNAME,
            ARG_LASTNAME,
            ARG_PASSWORD,
            ARG_USE_RANDOM_PASSWORD,
            ARG_VERBOSE,
        ),
        epilog=(
            "examples:\n"
            'To create an user with "Admin" role and username equals to "admin", run:\n'
            "\n"
            "    $ airflow users create \\\n"
            "          --username admin \\\n"
            "          --firstname FIRST_NAME \\\n"
            "          --lastname LAST_NAME \\\n"
            "          --role Admin \\\n"
            "          --email admin@example.org"
        ),
    ),
    ActionCommand(
        name="delete",
        help="Delete a user",
        func=lazy_load_command("airflow.cli.commands.user_command.users_delete"),
        args=(ARG_USERNAME_OPTIONAL, ARG_EMAIL_OPTIONAL, ARG_VERBOSE),
    ),
    ActionCommand(