www/h2o-devel: Mark BROKEN with Ruby 3.x when MRUBY option is enabled

MRBC mrblib/hash.rb
MRBC mrblib/kernel.rb
MRBC mrblib/numeric.rb
MRBC mrblib/range.rb
MRBC mrblib/string.rb
MRBC mrblib/symbol.rb

rake aborted!
wrong number of arguments (given 2, expected 1)
Rakefile:37:in `install_D'

• Error code 1

Stop.

PR: 263054
Approved by: maintainer timeout