Update git submodules
Update git submodules

* Update scripts/i18n from branch 'master'
  to 706e773b865360735826d085c0ea575c91a074d7
  - Localisation updates from https://translatewiki.net.
    
    Change-Id: I2f63dfe51c3a824163165d516203c0072fe700f6
    
wikimedia/pywikibot-core,wikimedia/pywikibot-core