[32702] Patch salt to allow scheduling to work properly on Windows

- See bug: https://github.com/saltstack/salt/issues/19277
- Fixes an issue where non-portable implementation prevented
  Windows hosts from using 'when' or 'cron' based schedules
Merge pull request #19295 from belvedere-trading/2014.7

[32702] Patch salt to allow scheduling to work properly on Windows