AppVeyor: update cache dependencies
AppVeyor: update cache dependencies

rgrinberg/lwt,rgrinberg/lwt,c-cube/lwt,c-cube/lwt,rneswold/lwt,ocsigen/lwt,ocsigen/lwt,rneswold/lwt,rgrinberg/lwt,c-cube/lwt,rneswold/lwt,rgrinberg/lwt,ocsigen/lwt