patch https://api.farpay.io/v2/invoices/
In order to resend he invoice, set the status to Queue. Otherwise mark the invoice
in the wanted state.
Note that the queued invoices will be moved to another state, as soon as the invoice is processed, which
can result in a immediate update of the invoice, since it is process momentarily after this call. Hence
the returned invoice reference will hold the new status.