Re-enable TestIO_Console#test_intr on FreeBSD

Ran 90 times on each of the rubyci FreeBSD 14.5 amd64 and 15.1 arm64
machines, in isolation and with the whole file both serially and under
-j2, with no failure.

ruby/ruby@3c7eab4

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: hsbt

test/io/console/test_io_console.rb

@@ -555,15 +555,6 @@ def assert_ctrl(expect, cc, r, w)
   end
 
   def test_intr
-    # This test fails randomly on FreeBSD 13
-    # http://rubyci.s3.amazonaws.com/freebsd13/ruby-master/log/20220304T163001Z.fail.html.gz
-    #
-    #   1) Failure:
-    # TestIO_Console#test_intr [/usr/home/chkbuild/chkbuild/tmp/build/20220304T163001Z/ruby/test/io/console/test_io_console.rb:387]:
-    # <"25"> expected but was
-    # <"-e:12:in `p': \e[1mexecution expired (\e[1;4mTimeout::Error\e[m\e[1m)\e[m">.
-    omit if host_os?(/freebsd/)
-
     run_pty("#{<<~"begin;"}\n#{<<~'end;'}") do |r, w, _|
       begin;
         require 'timeout'