When using other protocol than HTTP/S download the whole zchunk file (RhBug:1886706)
When using other protocol than HTTP/S download the whole zchunk file (RhBug:1886706)

Make sure we fall back to downloading full zchunk file because for
example FTP doesn't support ranges.
This is in principle similar situation to
https://github.com/rpm-software-management/librepo/pull/155

= changelog =
msg: When zchunk enabled and not using HTTP/S protocol donwload the whole file
type: bugfix
resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1886706

rpm-software-management/librepo,Tojaj/librepo,rpm-software-management/librepo,Tojaj/librepo,rpm-software-management/librepo,Tojaj/librepo