gnu: KDE Frameworks: Update to 5.54.0.

* gnu/packages/patches/kio-search-smbd-on-PATH.patch: Adjust context.
* gnu/packages/kde-frameworks.scm (kconfig): Update to 5.54.0.
[native-inputs]: Add DBUS.
[arguments]: Run tests with "dbus-launch".
(kio): Update to 5.54.1.
[inputs]: Add KCRASH.
(breeze-icons): Update to 5.54.0.
[arguments]: Remove.
(extra-cmake-modules, attica, bluez-qt, kapidox, karchive,
kcodecs, kcoreaddons, kdbusaddons, kdnssd, kguiaddons, ki18n, kidletime,
kirigami, kitemmodels, kitemviews, kplotting, ksyntaxhighlighting, kwayland,
kwidgetsaddons, kwindowsystem, modemmanager-qt, networkmanager-qt,
oxygen-icons, prison, qqc2-desktop-style, solid, sonnet, threadweaver,
kactivities, kauth, kcompletion, kcrash, kdoctools, kfilemetadata,
kimageformats, kjobwidgets, knotifications, kpackage, kpty, kunitconversion,
baloo, kactivities-stats, kbookmarks, kcmutils, kconfigwidgets, kdeclarative,
kded, kdesignerplugin, kdesu, kdewebkit, kemoticons, kglobalaccel,
kiconthemes, kinit, knewstuff, knotifyconfig, kparts, kpeople, krunner,
kservice, ktexteditor, ktextwidgets, kwallet, kxmlgui, kxmlrpcclient,
plasma-framework, kde-frameworkintegration, kdelibs4support, khtml, kjs,
kjsembed, kmediaplayer, kross): Update to 5.54.0.

gnu/packages/patches/kio-search-smbd-on-PATH.patch

@@ -16,7 +16,7 @@ pkgs/development/libraries/kde-frameworks/kio/samba-search-path.patch
 +        QLatin1Char pathSep(':');
 +        QStringList paths = QFile::decodeName(pathEnv).split(pathSep, QString::SkipEmptyParts);
 +        for (QStringList::iterator it = paths.begin(); it != paths.end(); ++it) {
-+            it->append("/smbd");
++            it->append(QStringLiteral("/smbd"));
 +            if (QFile::exists(*it)) {
 +                return true;
 +            }