[#331] Mettre à jour l'entité Shipment et bovin_shipment (!30)

| Numéro du ticket | Titre du ticket |
|------------------|-----------------|
|      #331           |        Mettre à jour l'entité Shipment et bovin_shipment         |

## Description de la PR

## Modification du .env

## Check list

- [x] Pas de régression
- [ ] TU/TI/TF rédigée
- [x] TU/TI/TF OK
- [x] CHANGELOG modifié

Reviewed-on: #30
Reviewed-by: Autin <tristan@yuno.malio.fr>
Co-authored-by: kevin <kevin@yuno.malio.fr>
Co-committed-by: kevin <kevin@yuno.malio.fr>

templates/shipment_voucher.html.twig

@@ -250,13 +250,11 @@
             <td>
                 <strong>Bovin</strong><br><br>
                 <div class="bigtable-notes">
-                    {% if shipment.bovinShipments is not empty %}
-                        {% for entry in shipment.bovinShipments %}
-                            <p>
-                                {{ entry.shipmentType ? entry.shipmentType.label : '-' }} :
-                                {{ entry.nbBovinSend ?? 0 }}
-                            </p>
-                        {% endfor %}
+                    {% if shipment.shipmentType %}
+                        <p>
+                            {{ shipment.shipmentType.label ?? '-' }} :
+                            {{ shipment.nbBovinSend ?? 0 }}
+                        </p>
                     {% else %}
                         <p>-</p>
                     {% endif %}