Snippets for plasma-activities 6.8.0 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/plasma-activities/6.8.0/1.fc46/data/logs/s390x/build.log.

• /builddir/build/BUILD/plasma-activities-6.8.0-build/plasma-activities-6.8.0/src/lib/manager_p.cpp:92:103: warning: unused parameter ‘newOwner’ [-Wunused-parameter]
     92 | void Manager::serviceOwnerChanged(const QString &serviceName, const QString &oldOwner, const QString &newOwner)
        |                                                                                        ~~~~~~~~~~~~~~~^~~~~~~~