loongson/pypi: links for sklearn-export

loongson/mirror sklearn-export-0.0.7.tar.gz
loongson/mirror sklearn-export-0.0.6.tar.gz
loongson/mirror sklearn-export-0.0.5.tar.gz
loongson/mirror sklearn_export-0.0.5-py3-none-any.whl
loongson/mirror sklearn-export-0.0.4.tar.gz
loongson/mirror sklearn_export-0.0.4-py3-none-any.whl
loongson/mirror sklearn-export-0.0.3.tar.gz