Use more generic bot? instead of support_bot?

We kept support_bot? where the actual Service Desk user is checked

ee/app/models/ee/issue.rb

@@ -24,7 +24,7 @@ module EE
 
     # override
     def check_for_spam?
-      author.support_bot? || super
+      author.bot? || super
     end
 
     # override
@@ -48,7 +48,7 @@ module EE
       # Making the support bot subscribed to every issue is not as bad as it
       # seems, though, since it isn't permitted to :receive_notifications,
       # and doesn't actually show up in the participants list.
-      user.support_bot? || super
+      user.bot? || super
     end
 
     # override

ee/lib/banzai/reference_parser/ee/base_parser.rb

@@ -9,7 +9,7 @@ module Banzai
         # the policies framework, but CE currently
         # manually checks for team membership and the like.
         def nodes_user_can_reference(user, nodes)
-          return [] if user.support_bot?
+          return [] if user.bot?
 
           super
         end