skip the sidebar spec on Rails 3
skip the sidebar spec on Rails 3

The original implementation of this test still passes, but for some
reason Rails 3.2 doesn’t actually run any callbacks defined in this
test. As old as Rails 3.2 is, I think it’s fine to skip. We’re going to
be dropping support for it soon anyways.

wspurgin/activeadmin,quikly/active_admin,varyonic/activeadmin,iuriandreazza/activeadmin,iuriandreazza/activeadmin,cmunozgar/activeadmin,mrjman/activeadmin,mateusg/active_admin,halilim/activeadmin,mrjman/activeadmin,wspurgin/activeadmin,SoftSwiss/active_admin,vraravam/activeadmin,whatcould/active_admin,waymondo/active_admin,maysam/activeadmin,mauriciopasquier/active_admin,gogovan/activeadmin,gogovan/activeadmin,varyonic/activeadmin,iuriandreazza/activeadmin,vytenis-s/activeadmin,siutin/activeadmin,waymondo/active_admin,javierjulio/activeadmin,waymondo/active_admin,cmunozgar/activeadmin,halilim/activeadmin,senid231/activeadmin,activeadmin/activeadmin,iuriandreazza/activeadmin,siutin/activeadmin,whatcould/active_admin,mauriciopasquier/active_admin,activeadmin/activeadmin,halilim/activeadmin,SoftSwiss/active_admin,chdem/activeadmin,Ibotta/activeadmin,mrjman/activeadmin,Ibotta/activeadmin,mateusg/active_admin,maysam/activeadmin,chdem/activeadmin,vraravam/activeadmin,Ibotta/activeadmin,activeadmin/activeadmin,bolshakov/activeadmin,siutin/activeadmin,bolshakov/activeadmin,mateusg/active_admin,deivid-rodriguez/activeadmin,iuriandreazza/activeadmin,wspurgin/activeadmin,iuriandreazza/activeadmin,quikly/active_admin,javierjulio/activeadmin,maysam/activeadmin,vytenis-s/activeadmin,deivid-rodriguez/activeadmin,mauriciopasquier/active_admin,senid231/activeadmin,cmunozgar/activeadmin,bolshakov/activeadmin,javierjulio/activeadmin,varyonic/activeadmin,chdem/activeadmin,gogovan/activeadmin,iuriandreazza/activeadmin,vraravam/activeadmin,vytenis-s/activeadmin,SoftSwiss/active_admin,whatcould/active_admin,quikly/active_admin,senid231/activeadmin,deivid-rodriguez/activeadmin