Function probe

pub(crate) async fn probe(
    interval: Duration,
    local_node: String,
    endpoint_ipaddr: IpAddr,
    url: String,
    fqdn: String,
    ipaddr: IpAddr,
    chan_outbox_tx: Sender<QuorumMsg>,
)

Runs an HTTP[S] probe. Sends datapoints into chan_outbox_tx