### Body

The CLI:

`airflow variables set [-h] [-j] [-v] key VALUE`

https://airflow.apache.org/docs/apache-airflow/stable/cli-and-env-variables-ref.html#set_repeat1

Doesn't support adding description though column exists and we support it from Rest API:
https://airflow.apache.org/docs/apache-airflow/stable/stable-rest-api-ref.html#operation/post_variables

**The Task:**

Allow to set description from cli command

### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
func=lazy_load_command("airflow.cli.commands.provider_command.notifications_list"),
        args=(ARG_OUTPUT, ARG_VERBOSE),
    ),
    ActionCommand(
        name="configs",
        help="Get information about provider configuration",
        func=lazy_load_command("airflow.cli.commands.provider_command.config_list"),
        args=(ARG_OUTPUT, ARG_VERBOSE),
    ),
    ActionCommand(
        name="lazy-loaded",
        help="Checks that provider configuration is lazy loaded",
        func=lazy_load_command("airflow.cli.commands.provider_command.lazy_loaded"),
        args=(ARG_VERBOSE,),
    ),
)
CONFIG_COMMANDS = (
    ActionCommand(
        name="get-value",
        help="Print the value of the configuration",
        func=lazy_load_command("airflow.cli.commands.config_command.get_value"),
        args=(
            ARG_SECTION,
            ARG_OPTION,
            ARG_VERBOSE,
        ),
    ),
    ActionCommand(
        name="list",
        help="List options for the configuration",