loongson/mirror: links for js2py-3-13

loongson/mirror js2py_3_13-0.74.1.tar.gz
loongson/mirror Js2Py_3.13-0.74.1-py3-none-any.whl
loongson/mirror js2py_3_13-0.74.tar.gz
loongson/mirror Js2Py_3.13-0.74-py3-none-any.whl