loongson/mirror: links for standard-chunk

loongson/mirror standard_chunk-3.13.0.tar.gz
loongson/mirror standard_chunk-3.13.0-py3-none-any.whl
loongson/mirror standard_chunk-3.12.2.tar.gz
loongson/mirror standard_chunk-3.12.2-py3-none-any.whl
loongson/mirror standard_chunk-3.11.9.tar.gz
loongson/mirror standard_chunk-3.11.9-py3-none-any.whl