- Make jack explicitly require libjack{,net,server}%{sonum} so
that the official libraries are installed and zypper doesn't
just use the pipewire-libjack-0_3 replacement libraries
(related to boo#1222253)

Note that the real fix for boo#1222253 was submitted in https://build.opensuse.org/request/show/1166928
but this change in jack also helps to make sure the jack server
actually uses the official jack libraries.