loongson/pypi: links for shelllangchain

loongson/mirror shelllangchain-0.2.2.tar.gz
loongson/mirror shelllangchain-0.2.2-py3-none-any.whl
loongson/mirror shelllangchain-0.1.7.tar.gz
loongson/mirror shelllangchain-0.1.7-py3-none-any.whl
loongson/mirror shelllangchain-0.1.6.tar.gz
loongson/mirror shelllangchain-0.1.6-py3-none-any.whl