test_refinement.rb: increase timeout for RubyCI

https://rubyci.org/logs/rubyci.s3.amazonaws.com/amazon/ruby-trunk/log/20181229T153003Z.fail.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66647 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_refinement.rb

@@ -878,7 +878,7 @@ class TestRefinement < Test::Unit::TestCase
         #{PrependAfterRefine_CODE}
         undef PrependAfterRefine
       }
-    }
+    }, timeout: 30
   end
 
   def test_prepend_after_refine

test/testunit/test_parallel.rb

@@ -6,7 +6,7 @@ module TestParallel
   PARALLEL_RB = "#{File.dirname(__FILE__)}/../lib/test/unit/parallel.rb"
   TESTS = "#{File.dirname(__FILE__)}/tests_for_parallel"
   # use large timeout for --jit-wait
-  TIMEOUT = EnvUtil.apply_timeout_scale(RubyVM::MJIT.enabled? ? 100 : 10)
+  TIMEOUT = EnvUtil.apply_timeout_scale(RubyVM::MJIT.enabled? ? 100 : 30)
 
   class TestParallelWorker < Test::Unit::TestCase
     def setup