test/ruby/test_refinement.rb: extend the timeout

https://rubyci.org/logs/rubyci.s3.amazonaws.com/debian-riscv64/ruby-master/log/20200420T083601Z.fail.html.gz
2020-04-21 00:06:07 +09:00 · 2020-04-21 00:06:07 +09:00 · 8e51794265
commit 8e51794265
parent 7a0ac279b7
1 changed files with 1 additions and 1 deletions
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@ -920,7 +920,7 @@ class TestRefinement < Test::Unit::TestCase
        #{PrependAfterRefine_CODE}
        undef PrependAfterRefine
      }
-    }, timeout: 30
+    }, timeout: 60
  end

  def test_prepend_after_refine