Update git submodules
Update git submodules

* Update scripts/i18n from branch 'master'
  to 7ffeb762ae859950da7d5268246e80184d524516
  - Localisation updates from https://translatewiki.net.
    
    Change-Id: I3418184719a926e563cbd24bfe0fd5a482ac9aca
    
wikimedia/pywikibot-core,wikimedia/pywikibot-core