fix compilation error for old qt versions

Zhao Yuhang

2025-02-09 bc03db3759e0d8644e626adcbda066ccb2c30062

 examples/qml/qml.qrc

@@ -1,5 +1,6 @@
<RCC>
    <qresource prefix="/">
        <file>main.qml</file>
        <file>QWKButton.qml</file>
    </qresource>
</RCC>