convert GPLv3 license to SPDX

This is part of https://fedoraproject.org/wiki/Changes/SPDX_Licenses_Phase_4

python-qt5.spec

@@ -23,9 +23,10 @@
 Summary: PyQt5 is Python bindings for Qt5
 Name:    python-qt5
 Version: 5.15.10
-Release: 9%{?dist}
+Release: 10%{?dist}
 
-License: GPLv3
+# Automatically converted from old format: GPLv3 - review is highly recommended.
+License: GPL-3.0-only
 Url:     http://www.riverbankcomputing.com/software/pyqt/
 #Source0: https://www.riverbankcomputing.com/static/Downloads/PyQt5/%{version}/PyQt5-%{version}%{?snap:.%{snap}}.tar.gz
 Source0: https://pypi.python.org/packages/source/P/PyQt5/PyQt5-%{version}.tar.gz
@@ -309,6 +310,9 @@ sed -i \
 
 
 %changelog
+* Mon Jul 29 2024 Miroslav Suchý <msuchy@redhat.com> - 5.15.10-10
+- convert license to SPDX
+
 * Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 5.15.10-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild