Fix failing spec

We recently switched from inline to fake mode for sidekiq, so the
MR which introduced this change also changed existing sidekiq specs
to use inline explicitly, but this failing spec was merged meantime.

spec/migrations/schedule_fix_gitlab_com_pages_access_level_spec.rb

 require 'spec_helper'
 require Rails.root.join('db', 'post_migrate', '20191017045817_schedule_fix_gitlab_com_pages_access_level.rb')
 
-describe ScheduleFixGitlabComPagesAccessLevel, :migration, :sidekiq, schema: 2019_10_16_072826 do
+describe ScheduleFixGitlabComPagesAccessLevel, :migration, :sidekiq_might_not_need_inline, schema: 2019_10_16_072826 do
   using RSpec::Parameterized::TableSyntax
 
   let(:migration_name) { 'FixGitlabComPagesAccessLevel' }