Remote Command Execution via Github import

This is very similar to https://about.gitlab.com/releases/2022/08/22/critical-security-release-gitlab-15-3-1-released/#Remote%20Command%20Execution%20via%20Github%20import and allows arbitrary redis commands to be injected when imported a GitHub repository.

    def self.attr_accessor(*attrs)
      attrs.each do |attribute|
        class_eval do
          define_method attribute do
            @attrs[attribute.to_sym]
          end

          define_method "#{attribute}=" do |value|
            @attrs[attribute.to_sym] = value
          end …