loongson/mirror: links for utsavcalc

loongson/mirror utsavcalc-0.2.tar.gz
loongson/mirror utsavcalc-0.2-py3-none-any.whl
loongson/mirror utsavcalc-0.1.tar.gz
loongson/mirror utsavcalc-0.1-py3-none-any.whl