Ensure temporary icon files are extracted on /tmp

src/bin/TargetDataLoader.cpp

@@ -33,7 +33,7 @@ void TargetDataLoader::loadApplicationName(OrgAppimageServices1InspectorInterfac
 }
 
 void TargetDataLoader::loadApplicationIcon(OrgAppimageServices1InspectorInterface* inspectorInterface) {
-    QTemporaryFile temporaryIconFile("XXXXXX");
+    QTemporaryFile temporaryIconFile;
     if (temporaryIconFile.open()) {
         auto reply = inspectorInterface->extractApplicationIcon(target, temporaryIconFile.fileName());
         if (reply.isError())