Redirect to pdf attachement old name if not attached

spec/factories/attestation.rb

@@ -4,7 +4,7 @@ FactoryBot.define do
     dossier { create(:dossier) }
   end
 
-  trait :with_legacy_pdf do
+  trait :with_pdf do
     pdf { Rack::Test::UploadedFile.new("./spec/fixtures/files/dossierPDF.pdf", 'application/pdf') }
   end
 end