loongson/pypi: links for git-prune-merged

loongson/mirror git-prune-merged-0.4.6.tar.gz
loongson/mirror git_prune_merged-0.4.6-py3-none-any.whl
loongson/mirror git-prune-merged-0.4.5.tar.gz
loongson/mirror git_prune_merged-0.4.5-py3-none-any.whl