loongson/pypi: links for my-custom-messagebox

loongson/mirror my_custom_messagebox-1.3.3.tar.gz
loongson/mirror my_custom_messagebox-1.3.3-py3-none-any.whl
loongson/mirror my_custom_messagebox-1.3.2.tar.gz
loongson/mirror my_custom_messagebox-1.3.2-py3-none-any.whl