Cast id to string for compatibility with lower versions

Author: mcop1

src/Repository/IndexQueueRepository.php

@@ -156,6 +156,7 @@ public function denormalizeDatabaseEntry(array $entry): IndexQueue
         //bigint field potentially exceed max php int values on 32 bit systems, therefore this is handled as string
         $entry['operationTime'] = (string)$entry['operationTime'];
         $entry['dispatched'] = (string)$entry['dispatched'];
+        $entry['id'] = (string)$entry['id'];
 
         return $this->denormalizer->denormalize($entry, IndexQueue::class);
     }