Use qt.io rather than qt-project.org for network tests

Mainly because of a change in certificates which is causing failing
tests. Cherry-picked from https://codereview.qt-project.org/104619/

Change-Id: I8304e5ac4107428a250b71be5df7b5399a811017
Reviewed-by: Richard J. Moore <[email protected]>

Author: ec1oud

tests/auto/qsslsocket/tst_qsslsocket.cpp

@@ -735,7 +735,7 @@ void tst_QSslSocket::peerCertificateChain()
     QVERIFY(socket->waitForDisconnected());
 
     // connect again to a different server
-    socket->connectToHostEncrypted("trolltech.com", 443);
+    socket->connectToHostEncrypted("www.qt.io", 443);
     socket->ignoreSslErrors();
     QCOMPARE(socket->mode(), QSslSocket::UnencryptedMode);
     QVERIFY(socket->peerCertificateChain().isEmpty());

tests/auto/qsslsocket_onDemandCertificates_member/tst_qsslsocket_onDemandCertificates_member.cpp

@@ -199,7 +199,7 @@ void tst_QSslSocket_onDemandCertificates_member::proxyAuthenticationRequired(con
 
 void tst_QSslSocket_onDemandCertificates_member::onDemandRootCertLoadingMemberMethods()
 {
-    QString host("qt-project.org");
+    QString host("www.qt.io");
 
     // not using any root certs -> should not work
     QSslSocketPtr socket2 = newSocket();

tests/auto/qsslsocket_onDemandCertificates_static/tst_qsslsocket_onDemandCertificates_static.cpp

@@ -196,7 +196,7 @@ void tst_QSslSocket_onDemandCertificates_static::proxyAuthenticationRequired(con
 
 void tst_QSslSocket_onDemandCertificates_static::onDemandRootCertLoadingStaticMethods()
 {
-    QString host("qt-project.org");
+    QString host("www.qt.io");
 
     // not using any root certs -> should not work
     QSslSocket::setDefaultCaCertificates(QList<QSslCertificate>());