rubocop style update [ci skip]

spec/selenium_spec_chrome.rb

@@ -69,7 +69,7 @@ module TestSessions
   when /Capybara::Session selenium_chrome Capybara::Window#maximize/
     pending "Chrome headless doesn't support maximize" if ENV['HEADLESS']
   when /Capybara::Window#fullscreen should be able to fullscreen the window/
-    skip "Chromedriver hangs on attempts to fullscreen in headless mode" if ENV['HEADLESS']
+    skip 'Chromedriver hangs on attempts to fullscreen in headless mode' if ENV['HEADLESS']
   when /details non-summary descendants should be non-visible/
     pending 'Chromedriver built-in is_displayed is currently broken' if ENV['W3C'] == 'false'
   end