loongson/mirror: links for file-merger

loongson/mirror file-merger-0.1.0rc2.tar.gz
loongson/mirror file_merger-0.1.0rc2-py3-none-any.whl
loongson/mirror file-merger-0.1.0rc1.tar.gz
loongson/mirror file_merger-0.1.0rc1-py3-none-any.whl