Merge branch '43304-simplify-filtering-non-human-users' into 'master'

Simplify filtering of non-human users.

Closes #43304

See merge request gitlab-org/gitlab-ce!17288

app/models/user.rb

@@ -431,7 +431,7 @@ class User < ActiveRecord::Base
   end
 
   def self.non_internal
-    where(Hash[internal_attributes.zip([[false, nil]] * internal_attributes.size)])
+    where(internal_attributes.map { |attr| "#{attr} IS NOT TRUE" }.join(" AND "))
   end
 
   #