Whitelist rubocop CodeReuse/ActiveRecord usage (not activerecord)

ee/app/finders/merge_requests/by_approvals_finder.rb

@@ -8,10 +8,12 @@ module MergeRequests
     # We apply a limitation to the amount of elements that can be part of the filter condition
     MAX_FILTER_ELEMENTS = 5
 
+    # rubocop:disable CodeReuse/ActiveRecord
     def initialize(usernames, ids)
       @usernames = Array(usernames).map(&:to_s).uniq.take(MAX_FILTER_ELEMENTS)
       @ids = Array(ids).uniq.take(MAX_FILTER_ELEMENTS)
     end
+    # rubocop:enable CodeReuse/ActiveRecord
 
     def execute(items)
       if by_no_approvals?