loongson/pypi: links for ruby-buildtest-config

loongson/mirror Ruby-buildtest-config-0.6.3.tar.gz
loongson/mirror Ruby-buildtest-config-0.6.2.tar.gz
loongson/mirror Ruby-buildtest-config-0.6.1.tar.gz
loongson/mirror Ruby-buildtest-config-0.6.0.tar.gz
loongson/mirror Ruby-buildtest-config-0.5.0.tar.gz
loongson/mirror Ruby-buildtest-config-0.4.0.tar.gz
loongson/mirror Ruby-buildtest-config-0.2.3.tar.gz