/usr/lib/ruby/vendor_ruby/faraday_middleware/response/ is in ruby-faraday-middleware 0.12.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/caching.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/chunked.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/follow_redirects.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/mashify.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/parse_dates.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/parse_json.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/parse_marshal.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/parse_xml.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/parse_yaml.rb
/usr/lib/ruby/vendor_ruby/faraday_middleware/response/rashify.rb