[#SIRH-12] Export des heures d'un employé sur une année (#7)

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## Description de la PR

## Modification du .env

## Check list

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

Reviewed-on: #7
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

src/Repository/Contract/EmployeeContractPeriodReadRepositoryInterface.php

@@ -11,4 +11,6 @@ use DateTimeImmutable;
 interface EmployeeContractPeriodReadRepositoryInterface
 {
     public function findOneCoveringDate(Employee $employee, DateTimeImmutable $date): ?EmployeeContractPeriod;
+
+    public function findLatestPeriod(Employee $employee): ?EmployeeContractPeriod;
 }

src/Repository/EmployeeContractPeriodRepository.php

@@ -60,6 +60,18 @@ final class EmployeeContractPeriodRepository extends ServiceEntityRepository imp
         ;
     }
 
+    public function findLatestPeriod(Employee $employee): ?EmployeeContractPeriod
+    {
+        return $this->createQueryBuilder('p')
+            ->andWhere('p.employee = :employee')
+            ->setParameter('employee', $employee)
+            ->orderBy('p.startDate', 'DESC')
+            ->setMaxResults(1)
+            ->getQuery()
+            ->getOneOrNullResult()
+        ;
+    }
+
     public function closeOpenPeriods(Employee $employee, DateTimeImmutable $endDate): int
     {
         return $this->createQueryBuilder('p')