Move login_as after creating data for a test

It doesn't really affect the tests, but it helps isolate useless
assignments, and we already did it this way 94% of the time.

spec/features/admin/translatable_spec.rb

@@ -2,8 +2,8 @@ require "rails_helper"
 
 describe "Admin edit translatable records" do
   before do
-    login_as(create(:administrator).user)
     translatable.update(attributes)
+    login_as(create(:administrator).user)
   end
 
   let(:fields) { translatable.translated_attribute_names }