asciidoctor: use ruby34

Author: i0ntempest

textproc/asciidoctor/Portfile

@@ -7,9 +7,9 @@ PortGroup           ruby 1.0
 # architectures.  Don't change it without preserving this property.
 # The choice of Ruby versions doesn't affect clients.
 #
-ruby.setup          asciidoctor 2.0.23 gem {} rubygems ruby33
+ruby.setup          asciidoctor 2.0.23 gem {} rubygems ruby34
 name                asciidoctor
-revision            0
+revision            1
 
 # Prevent addition of the ruby interpreter version number as suffix to command line tools
 ruby.link_binaries_suffix