fix(user dossiers index): do not crash with a deleted dossier and a discarded procedure

spec/controllers/users/dossiers_controller_spec.rb

@@ -913,6 +913,18 @@ describe Users::DossiersController, type: :controller do
         expect(assigns(:dossiers_invites).second.updated_at.to_date).to eq(4.days.ago.to_date)
       end
     end
+
+    context 'when the user has a deleted dossier on a discarded procedure' do
+      render_views
+
+      let!(:deleted_dossier) { create(:deleted_dossier, user_id: user.id) }
+
+      before { deleted_dossier.procedure.discard! }
+
+      subject { get(:index, params: { statut: 'dossiers-supprimes-definitivement' }) }
+
+      it { is_expected.to have_http_status(200) }
+    end
   end
 
   describe '#show' do