Fix test for Portuguese

It fails because we try to follow a link without a Portuguese
translation. In Madrid they use Spanish as fallback, but in consul we
use English as fallback, and so the text in the link is different in
those repos.

A proper solution would be to update the Portuguese locales. However,
since this test is going to be removed in our next backport, I'm just
doing a quick patch.

spec/features/translations_spec.rb

@@ -98,7 +98,7 @@ feature "Translations" do
       expect(page).to have_content("Description in English")
 
       select('Português', from: 'locale-switcher')
-      click_link("Seguimiento (1)")
+      click_link("Milestones (1)")
 
       expect(page).to have_content('Description in pt-BR')
     end