[rb] convert binary locations for cygwin

fixes #12618

Author: titusfortner

rb/lib/selenium/webdriver/common/selenium_manager.rb

@@ -41,8 +41,8 @@ def driver_path(options)
 
           output = run(*command)
 
-          browser_path = output['browser_path']
-          driver_path = output['driver_path']
+          browser_path = Platform.cygwin? ? Platform.cygwin_path(output['browser_path']) : output['browser_path']
+          driver_path = Platform.cygwin? ? Platform.cygwin_path(output['driver_path']) : output['driver_path']
           Platform.assert_executable driver_path
 
           if options.respond_to?(:binary) && browser_path && !browser_path.empty?