[tests] Skip some tests for wpbeta and wsbeta
[tests] Skip some tests for wpbeta and wsbeta

Skip test_recentchanges_default method of
pagegenerators_tests.TestFactoryGenerator due to too
many autoblocked users. Tests fails for a long time.

Bug: T219780
Change-Id: I24be60fea1799dbb709dee8ec5bdca1e7da1b500

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