minor #12529 Delete apostrophe in custom-transport.rst (mynameisbogdan)

This PR was merged into the 4.3 branch.

Discussion
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Delete apostrophe in custom-transport.rst

Delete apostrophe in example in custom-transport.rst

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Commits
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fe36975 Delete apostrophe in custom-transport.rst

Author: javiereguiluz

messenger/custom-transport.rst

@@ -61,7 +61,7 @@ Here is a simplified example of a database transport::
             $row = $this->db->createQuery(
                     'SELECT *
                     FROM my_queue
-                    WHERE (delivered_at IS NULL OR delivered_at < :redeliver_timeout')
+                    WHERE (delivered_at IS NULL OR delivered_at < :redeliver_timeout)
                     AND handled = FALSE'
                 )
                 ->setParameter('redeliver_timeout', new DateTimeImmutable('-5minutes'))