prevent the support bot from referencing anything

lib/banzai/reference_parser/ee/base_parser.rb

+module Banzai
+  module ReferenceParser
+    module EE
+      module BaseParser
+        # override
+        # TODO: this override would make more sense in
+        # 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?
+
+          super
+        end
+      end
+    end
+  end
+end