loongson/pypi: links for pycopy-uyaml

loongson/mirror pycopy-uyaml-0.5.2.tar.gz
loongson/mirror pycopy-uyaml-0.5.1.tar.gz
loongson/mirror pycopy-uyaml-0.5.tar.gz
loongson/mirror pycopy-uyaml-0.4.tar.gz
loongson/mirror pycopy-uyaml-0.3.tar.gz
loongson/mirror pycopy-uyaml-0.2.tar.gz
loongson/mirror pycopy-uyaml-0.1.tar.gz