loongson/pypi: links for apache-flink-ml

loongson/mirror apache-flink-ml-2.3.0.tar.gz
loongson/mirror apache-flink-ml-2.2.0.tar.gz
loongson/mirror apache-flink-ml-2.1.0.tar.gz
loongson/mirror apache-flink-ml-2.0.0.tar.gz