Increase :timeout and :process_timeout

The timeout value was extended due to occasional CI failures.
Addressing the following error messages:

```
Ferrum::TimeoutError: Timed out waiting for response. It's possible that this happened because something took a very long time (for example a page load was slow). If so, setting the :timeout option to a higher value might help.
```

```
Ferrum::ProcessTimeoutError: Browser did not produce websocket url within 10 seconds, try to increase `:process_timeout`. See https://github.com/rubycdp/ferrum#customization
```

test/test_helper.rb

@@ -24,7 +24,9 @@
 
 Capybara.register_driver :cuprite do |app|
   options = {
-      window_size: [1280, 1024]
+      window_size: [1280, 1024],
+      timeout: 15,
+      process_timeout: 15
   }
   options[:browser_path] = browser_path if browser_path
   Capybara::Cuprite::Driver.new(app, options)
@@ -38,4 +40,3 @@
   config.server_port = 7000
   config.default_max_wait_time = 10
 end
-