loongson/pypi: links for cargo-vcs

loongson/mirror cargo-vcs-2.4.tar.gz
loongson/mirror cargo_vcs-2.4-py3-none-any.whl
loongson/mirror cargo-vcs-2.3.tar.gz
loongson/mirror cargo_vcs-2.3-py3-none-any.whl
loongson/mirror cargo-vcs-2.2.tar.gz
loongson/mirror cargo_vcs-2.2-py3-none-any.whl
loongson/mirror cargo-vcs-2.1.tar.gz
loongson/mirror cargo_vcs-2.1-py3-none-any.whl