Update git submodules
Update git submodules

* Update scripts/i18n from branch 'master'
  to 4a7c0e17a90f861ef67ebd0d9de3a8a15bad0b88
  - Localisation updates from https://translatewiki.net.
    
    Change-Id: Ib5c4e40def656816ec1609055f55bf2fdb3ac557
    
wikimedia/pywikibot-core,wikimedia/pywikibot-core