loongson/pypi: links for sttcpy

loongson/mirror sttcpy-1.2.0.tar.gz
loongson/mirror sttcpy-1.2.0-py3-none-any.whl
loongson/mirror sttcpy-1.0.0.tar.gz
loongson/mirror STTCPy-1.0.0-py3-none-any.whl