[ChangeLog][QtCore][QCborValue] Fixed conversions from QVariant when the variant contained long, unsigned long, or qfloat16. [ChangeLog][QtCore][QJsonValue] Fixed conversions from QVariant when the variant contained long, unsigned long, or qfloat16. Pick-to: 6.9 6.8 Fixes: QTBUG-134756 Change-Id: I08d069dd639c0fc5a15afffd4067762ec94d606d Reviewed-by: Marc Mutz <marc.mutz@qt.io>