loongson/pypi: links for orjson

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

loongson/pypi orjson-3.10.6-cp39-cp39-linux_loongarch64.whl
loongson/pypi orjson-3.10.5-cp38-cp38-linux_loongarch64.whl
loongson/pypi orjson-3.10.3-cp310-cp310-linux_loongarch64.whl
loongson/pypi orjson-3.9.4-cp38-cp38-linux_loongarch64.whl
loongson/pypi orjson-3.8.7-cp38-cp38-linux_loongarch64.whl
loongson/pypi orjson-3.8.7-cp37-cp37m-linux_loongarch64.whl