Add functionality to delete old versions of documents

This commit introduces a feature that automatically deletes old versions of StoredObjects in the Chill application. A cron job, "RemoveOldVersionCronJob", has been implemented to delete versions older than 90 days. A message handler, "RemoveOldVersionMessageHandler", has been added to handle deletion requests. Furthermore, unit tests for the new functionality have been provided.

src/Bundle/ChillDocStoreBundle/Tests/Service/Repository/StoredObjectVersionRepositoryTest.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\DocStoreBundle\Tests\Repository;
+
+use Chill\DocStoreBundle\Repository\StoredObjectVersionRepository;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+class StoredObjectVersionRepositoryTest extends KernelTestCase
+{
+    private EntityManagerInterface $entityManager;
+
+    protected function setUp(): void
+    {
+        self::bootKernel();
+        $this->entityManager = self::getContainer()->get(EntityManagerInterface::class);
+    }
+
+    public function testFindIdsByVersionsOlderThanDateAndNotLastVersion(): void
+    {
+        $repository = new StoredObjectVersionRepository($this->entityManager);
+
+        // get old version, to get a chance to get one
+        $actual = $repository->findIdsByVersionsOlderThanDateAndNotLastVersion(new \DateTimeImmutable('1970-01-01'));
+
+        self::assertIsIterable($actual);
+        self::assertContainsOnly('int', $actual);
+    }
+}