[Messenger] Documented the delete_after_reject option

Author: javiereguiluz

messenger.rst

@@ -1143,6 +1143,8 @@ group               The Redis consumer group name          symfony
 consumer            Consumer name used in Redis            consumer
 auto_setup          Create the Redis group automatically?  true
 auth                The Redis password
+delete_after_reject If ``true``, messages are deleted      true
+                    automatically if they are rejected
 serializer          How to serialize the final payload     ``Redis::SERIALIZER_PHP``
                     in Redis (the
                     ``Redis::OPT_SERIALIZER`` option)
@@ -1153,6 +1155,10 @@ stream_max_entries  The maximum number of entries which    ``0`` (which means "n
 tls                 Enable TLS support for the connection  false
 ==================  =====================================  =========================
 
+.. versionadded:: 5.2
+
+    The ``delete_after_reject`` option was introduced in Symfony 5.2.
+
 In Memory Transport
 ~~~~~~~~~~~~~~~~~~~