Change ownCloud/Nextcloud base path to /remote.php/dav/
Currently (3.32.0) the advertised uri for an ownCloud/Nextcloud server is either
/remote.php/carddav/, but the new version uses
/remote.php/dav/ for both. I do not know since which version, but while working on evolution-data-server#121 (closed) it turned out that the
/dav/ variant provides more information than the
/caldav/ variant, which seems to be left there for backward compatibility only and may disappear in the future (I guess).