loongson/pypi: links for db2table

loongson/mirror db2table-0.2.1.tar.gz
loongson/mirror db2table-0.2.1-py3-none-any.whl
loongson/mirror db2table-0.2.0-py3-none-any.whl
loongson/mirror db2table-0.1.1.tar.gz