Update git submodules
Update git submodules

* Update scripts/i18n from branch 'master'
  to 8fd4a67972d252c36e3c0411edbce0074bc98598
  - Localisation updates from https://translatewiki.net.
    
    Change-Id: I24dbfae9229bd3524be375b77997cc184d9a166c
    
wikimedia/pywikibot-core,PersianWikipedia/pywikibot-core,wikimedia/pywikibot-core