Log Message:
Update ruby-redcarpet to 3.3.3.

Version 3.3.3

* Fix a memory leak instantiating a Redcarpet::Render::Base object.

  Oleg Dashevskii

* Fix the StripDown renderer to handle the :highlight option.

  Itay Grudev

* The StripDown renderer handles tables if the tables extension is enabled.

  amnesia7

* Fix Smarty Pants to avoid fraction conversions when there are several
  numbers separated with slashes (e.g. for a date).

  Sam Saffron