rabbitmq.conf.example: mention a new doc guide, https://www.rabbitmq.com/docs/stream-connections

(cherry picked from commit 3bcc96f)

Author: michaelklishin

deps/rabbit/docs/rabbitmq.conf.example

@@ -429,7 +429,7 @@
 ##
 ## * https://www.rabbitmq.com/docs/streams
 ## * https://www.rabbitmq.com/docs/stream
-## * https://www.rabbitmq.com/blog/2021/07/23/connecting-to-streams
+## * https://www.rabbitmq.com/docs/stream-connections
 ##
 
 ## RabbitMQ Stream Protocol plain TCP listeners and their ports.