loongson/pypi: links for icespringpysidestubs-pyqt6

loongson/mirror IceSpringPySideStubs-PyQt6-1.3.1.tar.gz
loongson/mirror IceSpringPySideStubs_PyQt6-1.3.1-py3-none-any.whl
loongson/mirror IceSpringPySideStubs-PyQt6-1.3.0.tar.gz
loongson/mirror IceSpringPySideStubs_PyQt6-1.3.0-py3-none-any.whl