loongson/pypi: links for umlmodel

loongson/mirror umlmodel-3.4.0.tar.gz
loongson/mirror umlmodel-3.4.0-py3-none-any.whl
loongson/mirror umlmodel-3.3.0.tar.gz
loongson/mirror umlmodel-3.3.0-py3-none-any.whl
loongson/mirror umlmodel-3.1.1.tar.gz
loongson/mirror umlmodel-3.1.1-py3-none-any.whl
loongson/mirror umlmodel-3.0.0.tar.gz
loongson/mirror umlmodel-3.0.0-py3-none-any.whl