Log Message:
textproc/ruby-libxml: update to 4.1.0

There is release of 4.0.1 in History file, but it looks like that 4.0.1 has
released as 4.1.0.  From History:

4.0.1 (2023-04-30)

* Fix compile warning (or error) for rxml_encoding_to_rb_encoding (Charlie
  Savage)
* Remove LibXML::XML.features since its uses functionality deprecated in
  LibXML (Charlie Savage)