loongson/pypi: links for isaacsim-core

loongson/mirror isaacsim_core-5.1.0.0.tar.gz
loongson/mirror isaacsim_core-5.0.0.0.tar.gz
loongson/mirror isaacsim_core-4.5.0.0.tar.gz
loongson/mirror isaacsim_core-4.2.0.2.tar.gz
loongson/mirror isaacsim_core-4.2.0.1.tar.gz
loongson/mirror isaacsim_core-4.1.0.0.tar.gz
loongson/mirror isaacsim_core-4.0.0.0.tar.gz