Log websocket responses before delivering messages

[kanutocd]

Summary

• Log websocket responses before delivering them to waiting commands
• Prevent callers from reading logger output before the command response has been written

Verification

• bundle exec rspec spec/unit/browser_spec.rb
• bundle exec rspec spec/browser_spec.rb:44
• bundle exec rubocop lib/ferrum/client/web_socket.rb spec/unit/browser_spec.rb
• bundle exec rake test

[route]

That's not a race per se, but ok! You are not moving a comment along

[kanutocd]

@route Thanks, that makes sense. I updated the PR 's title to avoid framing this as a race, and moved the comment together with the @messages.push(data) if data line so it still documents the code it refers to.