### Description

Airflow Connection testing using airflow CLI would be very useful  , where users can quick add test function to test connection in their applications. It will benefit CLI user to create and test new connections right from instance and reduce time on troubleshooting any connection issue. 

### Use case/motivation

airflow connection testing using airflow CLI , similar function as we have in Airflow CLI. 
example:  airflow connection test "hello_id"

### Related issues

N/A

### 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)

ARG_MAP_INDEX = Arg(("--map-index",), type=int, default=-1, help="Mapped task index")
ARG_MIGRATION_TIMEOUT = Arg(
    ("-t", "--migration-wait-timeout"),
    help="timeout to wait for db to migrate ",
    type=int,
    default=60,
)
ARG_DB_RESERIALIZE_DAGS = Arg(
    ("--no-reserialize-dags",),
    
    help=argparse.SUPPRESS,
    action="store_false",
    default=True,
    dest="reserialize_dags",
)
ARG_DB_VERSION__UPGRADE = Arg(
    ("-n", "--to-version"),
    help=(
        "(Optional) The airflow version to upgrade to. Note: must provide either "
        "`--to-revision` or `--to-version`."
    ),
)
ARG_DB_REVISION__UPGRADE = Arg(
    ("-r", "--to-revision"),
    help="(Optional) If provided, only run migrations up to and including this Alembic revision.",
)
ARG_DB_VERSION__DOWNGRADE = Arg(
    ("-n", "--to-version"),
    help="(Optional) If provided, only run migrations up to this version.",
)