loongson/pypi: links for test-vision-client

loongson/mirror test_vision_client-0.58.tar.gz
loongson/mirror test_vision_client-0.56.tar.gz
loongson/mirror test_vision_client-0.54.tar.gz
loongson/mirror test_vision_client-0.52.tar.gz
loongson/mirror test_vision_client-0.50.tar.gz