loongson/pypi: links for os-grid-reference

loongson/mirror os-grid-reference-0.4.0.tar.gz
loongson/mirror os_grid_reference-0.4.0-py3-none-any.whl
loongson/mirror os-grid-reference-0.3.0.tar.gz
loongson/mirror os_grid_reference-0.3.0-py3-none-any.whl
loongson/mirror os-grid-reference-0.2.1.tar.gz
loongson/mirror os_grid_reference-0.2.1-py3-none-any.whl
loongson/mirror os-grid-reference-0.2.tar.gz
loongson/mirror os_grid_reference-0.2-py3-none-any.whl