seafile-client-qt: add build option: shibboleth
seafile-client-qt: add build option: shibboleth

Closes: #11056 [via git-merge-pr]

necrophcodr/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,coredumb/void-packages,coredumb/void-packages,coredumb/void-packages,coredumb/void-packages,necrophcodr/void-packages,coredumb/void-packages,NeoChontrix/void-packages,coredumb/void-packages