chore: upgrade phpunit to 12.5

tests/Service/Cron/WorkMonthReminderServiceTest.php

@@ -11,6 +11,7 @@ use App\Entity\Teamer;
 use App\Entity\TeamerWorkMonth;
 use App\Repository\TeamerWorkMonthRepository;
 use App\Service\Cron\WorkMonthReminderService;
+use PHPUnit\Framework\Attributes\AllowMockObjectsWithoutExpectations;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Psr\Log\NullLogger;
@@ -19,6 +20,7 @@ use Psr\Log\NullLogger;
  * Pins the rules the reminder applies: which day it runs on, how long it waits after an
  * import, and who it can actually reach. The query itself is the repository's business.
  */
+#[AllowMockObjectsWithoutExpectations]
 class WorkMonthReminderServiceTest extends TestCase
 {
     private TeamerWorkMonthRepository&MockObject $repository;