Update simple_form.rb

@joecorcoran

DEPRECATION WARNING: judge method now accepts a wrapper_options argument. The method definition without the argument is deprecated and will be removed in the next Simple Form version. Change your code from:
def judge
to
def judge(wrapper_options)
See plataformatec/simple_form#997 for more information.
(called from render at ........../bundler/gems/simple_form-6c9e69b22f63/lib/simple_form/wrappers/leaf.rb:15)

This just solve the deprecation warning!
We should merge it