Update taskscheduler_api2.rb

Update legacy fact

Author: voreilly

lib/puppet/provider/scheduled_task/taskscheduler_api2.rb

@@ -8,8 +8,8 @@
        This is a technical preview using the newer V2 API interface but
        still editing V1 compatbile scheduled tasks."
 
-  defaultfor operatingsystem: :windows
-  confine    operatingsystem: :windows
+  defaultfor 'os.name': :windows
+  confine    'os.name': :windows
 
   has_feature :compatibility