loongson/pypi: links for paddlepaddle

INFO: Because this project isn't in the mirror_whitelist, no releases from root/pypi are included.

loongson/pypi paddlepaddle-2.4.2-cp38-cp38-linux_loongarch64.whl
loongson/pypi paddlepaddle-2.4.2-cp37-cp37m-linux_loongarch64.whl
loongson/pypi paddlepaddle-2.4.2-cp36-cp36m-linux_loongarch64.whl
loongson/pypi paddlepaddle-0.0.0-cp38-cp38-linux_loongarch64.whl
loongson/pypi paddlepaddle-0.0.0-cp37-cp37m-linux_loongarch64.whl