refactor+fix: use QSharedPointer for shared_qobject_ptr

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/minecraft/MinecraftUpdate.h

@@ -50,7 +50,7 @@ private:
 
 private:
     MinecraftInstance *m_inst = nullptr;
-    QList<std::shared_ptr<Task>> m_tasks;
+    QList<Task::Ptr> m_tasks;
     QString m_preFailure;
     int m_currentTask = -1;
     bool m_abort = false;