Silence KRunner deprecation warnings

We need to use this method, because the KPluginSelector can't
handle KPluginMetadata.

kcms/runners/kcm.cpp

@@ -132,10 +132,14 @@ SearchConfigModule::SearchConfigModule(QWidget* parent, const QVariantList& args
     connect(downloadButton, &KNS3::Button::dialogFinished, this, [this](const KNS3::Entry::List &changedEntries) {
        if (!changedEntries.isEmpty()) {
            m_pluginSelector->clearPlugins();
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_CLANG("-Wdeprecated-declarations")
+QT_WARNING_DISABLE_GCC("-Wdeprecated-declarations")
            m_pluginSelector->addPlugins(Plasma::RunnerManager::listRunnerInfo(),
                                         KPluginSelector::ReadConfigFile,
                                         i18n("Available Plugins"), QString(),
                                         KSharedConfig::openConfig(QStringLiteral("krunnerrc")));
+QT_WARNING_POP
        }
     });
     downloadLayout->addStretch();
@@ -158,10 +162,14 @@ void SearchConfigModule::load()
     // Set focus on the pluginselector to pass focus to search bar.
     m_pluginSelector->setFocus(Qt::OtherFocusReason);
 
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_CLANG("-Wdeprecated-declarations")
+QT_WARNING_DISABLE_GCC("-Wdeprecated-declarations")
     m_pluginSelector->addPlugins(Plasma::RunnerManager::listRunnerInfo(),
                     KPluginSelector::ReadConfigFile,
                     i18n("Available Plugins"), QString(),
                     config);
+QT_WARNING_POP
     m_pluginSelector->load();
 
     if(!m_pluginID.isEmpty()){