Fix unrelated spec failure

Failing for me locally, at least, with a Rational (`(31/1)`) value,
rather than the expected Integer (`30`) value.

ee/spec/models/application_setting_spec.rb

@@ -584,7 +584,7 @@ RSpec.describe ApplicationSetting do
       end
 
       it 'is in days_from_now' do
-        expect(subject.to_date - Date.today).to eq days_from_now
+        expect((subject.to_date - Date.current).to_i).to eq days_from_now
       end
     end