wercker.yml: increase timeout scale
mainly for test-mjit.
TestThreadQueue#test_queue_with_trap timed out with 10s. https://app.wercker.com/ruby/ruby/runs/test-mjit/5bcf4b5c9065740006f790ca?step=5bcf4b9787436a000648fbb7
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65339 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
wercker.yml: increase timeout scale
mainly for test-mjit.
TestThreadQueue#test_queue_with_trap timed out with 10s.
https://app.wercker.com/ruby/ruby/runs/test-mjit/5bcf4b5c9065740006f790ca?step=5bcf4b9787436a000648fbb7
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65339 b2dd03c8-39d4-4d8f-98ff-823fe69b080e