loongson/pypi: links for thumbor-plugins-optipng

loongson/mirror thumbor-plugins-optipng-0.1.3.tar.gz
loongson/mirror thumbor_plugins_optipng-0.1.3-py3-none-any.whl
loongson/mirror thumbor-plugins-optipng-0.1.2.tar.gz
loongson/mirror thumbor_plugins_optipng-0.1.2-py3-none-any.whl
loongson/mirror thumbor-plugins-optipng-0.1.0.tar.gz
loongson/mirror thumbor_plugins_optipng-0.1.0-py3-none-any.whl