wikipedia_family.py: Add 'sat' to languages_by_size
wikipedia_family.py: Add 'sat' to languages_by_size

Bug: T201313
Change-Id: I1429091ad3c5e36aef88d7426f28c0ad9101bacf

wikimedia/pywikibot-core,wikimedia/pywikibot-core,PersianWikipedia/pywikibot-core