/usr/lib/ruby/vendor_ruby/chef/resource/ is in ruby-cheffish 4.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/chef/resource/chef_acl.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_client.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_container.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_data_bag.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_data_bag_item.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_environment.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_group.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_mirror.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_node.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_organization.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_resolved_cookbooks.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_role.rb
/usr/lib/ruby/vendor_ruby/chef/resource/chef_user.rb
/usr/lib/ruby/vendor_ruby/chef/resource/private_key.rb
/usr/lib/ruby/vendor_ruby/chef/resource/public_key.rb