Log Message:
ruby-gnome: Update to 3.4.1.

Upstream changes (from NEWS):

== Ruby-GNOME 3.4.1: 2019-10-16

This is a follow-up release of 3.4.0.

=== Changes

==== Ruby/GDK3

  * Improvements

    * Added support for (({String})) and (({Symbol})) as (({Gdk::Color})).
      [GitHub#1286][Reported by rubyFeedback]

    * Added support for (({String})) and (({Symbol})) as (({Gdk::RGBA})).

==== Ruby/GObjectIntrospection

  * Improvements

    * Added support for (({GBytes **})).

=== Thanks

  * rubyFeedback