Add more useful data into rabbitmq_cluster_vhost_status metric

[jonsbun]

Is your feature request related to a problem? Please describe.

When a new virtual host is being created, a user can provide not only name, but also description and tags. Description and tags later are not visible in the GUI, but can be retrieved via /api/definitions/{vhost} API endpoint:

    "name": "test",
    "description": "testDescription",
    "tags": [
        "testTags"
    ],
    "default_queue_type": "quorum",
    "metadata": {
        "description": "testDescription",
        "tags": [
            "testTags"
        ],
        "default_queue_type": "quorum"
    },
    "tracing": false,
    "cluster_state": {
        "rabbit@server.local": "running"
    }
}

However, the same data is not available using RabbitMQ monitoring tools like Prometheus. This limitation allows filtering only by vhost name. Sometimes that is a big disadvantageous when creating Prometheus alerting rules because filtering is only available by vhost name and can't be achieved by vhost tags or description.

Describe the solution you'd like

Get RabbitMQ virtual host tags and description data when querying rabbitmq_cluster_vhost_status metric via Prometheus.

Describe alternatives you've considered

No response

Additional context

No response