Ruby

Allow a float error for Regexp.timeout

The tests failed on windows

https://github.com/ruby/ruby/actions/runs/3440997073/jobs/5740085169#step:18:62

    1) Failure:
  TestRegexp#test_s_timeout [D:/a/ruby/ruby/src/test/ruby/test_regexp.rb:1586]:
  <0.30000000000000004> expected but was
  <0.3>.

    2) Failure:
  TestRegexp#test_timeout_shorter_than_global [D:/a/ruby/ruby/src/test/ruby/test_regexp.rb:1631]:
  <0.30000000000000004> expected but was
  <0.3>.