fix: [debugger] Error in displaying QList member variables

[LiHua000]

When the variable is dynamic, it cannot be determined whether it has child members through attributes. Directly obtain it to observe whether it has child members’ is ‘When the variable is dynamic, it cannot be determined whether it has child members through properties. Directly access it to observe whether it has child members

Log: as title

[deepin-ci-robot]

deepin pr auto review

代码审查意见：

1. 在qt.py文件中，删除了多余的空行，这是一个好的实践，可以保持代码的整洁。

2. 在gdbdebugger.cpp文件中，parseChildVariable函数的参数类型从const gdbmi::Variable *更改为gdbmi::Variable *，这可能会影响其他调用该函数的地方。需要确认这一更改是否与函数的预期行为一致，并且是否在其他地方也做了相应的修改。

3. 在parseChildVariable函数中，添加了对var->dynamic的检查，并在满足条件时递归调用parseChildVariable。这是一个合理的做法，可以确保动态变量被正确处理。

4. 在parseChildVariable函数中，当var->value为"{...}"时，将其设置为空字符串。这是一个合理的处理方式，可以避免不必要的显示。

5. 在parseChildVariable函数中，当parentVariable->hasMore为false时，更新了parentVariable的childRefrence和hasMore属性。这是一个合理的做法，可以确保父变量的状态正确反映其子变量的状态。

6. 在gdbmi.cpp文件中，Variable::parseMap函数中，hasMore属性的默认值从true更改为false。这是一个合理的做法，可以避免不必要的递归调用。

总体来说，代码的更改看起来是合理的，但是需要确保这些更改不会影响其他部分的代码逻辑。如果parseChildVariable函数的参数类型更改，需要检查所有调用该函数的地方，并确保它们也做了相应的修改。

[deepin-ci-robot]

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This pull-request has been approved by: Kakueeen, LiHua000
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