QNetworkProxy::setUser,setPassword support QByteArray

If I am using Socks5 proxy，The server information is

hostname: as.proxy.com
port: 1000
username: FR_state-ÎLEDEFRANCE
pwd: 123456

You may notice special characters in username, "Î"

So when I use the following code

        QNetworkProxy proxySet;
        proxySet.setType(QNetworkProxy::Socks5Proxy);
        proxySet.setHostName("as.proxy.com");
        proxySet.setPort(1000);
        proxySet.setUser("FR_state-ÎLEDEFRANCE");
        proxySet.setPassword("123456"); 

Connection will fail.

Wireshark capture image in the attachment.

The problem lies in the handling of special characters.

Use curl -x socks5://FR_state-ÎLEDEFRANCE:123456@as.proxycn.com:1000 http://google.com

The network proxy is running good.

Curl processes characters as 0xc3 0x8e, but in Qt is 0xce.

Hope to add something similar  QNetWorkProxy::setUser(const QByteArray &userName); To solve such problems，include setPassword.