Update DbalProducer.php

from this thread ramsey/uuid#327
ramsey/uuid 4.1 introduced LazyUuidFromString object which is used over the original Uuid object

this causes conversions issues when using the objects, but can simply use toString() from UuidInterface to convert to actual guid when inserting

pkg/dbal/DbalProducer.php

@@ -66,7 +66,7 @@ public function send(Destination $destination, Message $message): void
         ;
 
         $dbalMessage = [
-            'id' => Uuid::uuid4(),
+            'id' => Uuid::uuid4()->toString(),
             'published_at' => $publishedAt,
             'body' => $body,
             'headers' => JSON::encode($message->getHeaders()),