root/pypi: links for gigachain-ai21

root/pypi gigachain_ai21-0.1.8.tar.gz
root/pypi gigachain_ai21-0.1.8-py3-none-any.whl
root/pypi gigachain_ai21-0.1.7.tar.gz
root/pypi gigachain_ai21-0.1.7-py3-none-any.whl
root/pypi gigachain_ai21-0.1.6.tar.gz
root/pypi gigachain_ai21-0.1.6-py3-none-any.whl