loongson/pypi: links for rollinggroupcorrelation

loongson/mirror rollinggroupcorrelation-0.4.tar.gz
loongson/mirror RollingGroupCorrelation-0.3.tar.gz
loongson/mirror RollingGroupCorrelation-0.2.tar.gz
loongson/mirror RollingGroupCorrelation-0.1.tar.gz