Qt Company proprietary license instead of Digia proprietary license for Qt

### Description

Scancode provides "digia-qt-commercial" for the following license text which is a follow up license for Qt from Qt Company:
.....
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
......

This should have an independent SPDX identifier.

### How To Reproduce

Scan of https://download.qt.io/official_releases/qt/5.15/5.15.4/single/qt-everywhere-opensource-src-5.15.4.tar.xz

### System configuration

* Linux
* ScanCode version: 31.0.0rc2
* unknown