loongson/mirror: links for ccl-flatten-json

loongson/mirror ccl_flatten_json-0.2.2.tar.gz
loongson/mirror ccl_flatten_json-0.2.2-py3-none-any.whl
loongson/mirror ccl_flatten_json-0.2.1.tar.gz
loongson/mirror ccl_flatten_json-0.2.1-py3-none-any.whl
loongson/mirror ccl_flatten_json-0.2.0.tar.gz
loongson/mirror ccl_flatten_json-0.2.0-py3-none-any.whl