GH-9230 fix error in code snippet

Fixes: #9230

Some code was present in the code snippet that shouldn't be there.


**Auto-cherry-pick to `6.3.x` & `6.2.x`**

src/reference/antora/modules/ROOT/pages/hazelcast.adoc

@@ -604,7 +604,7 @@ The xref:channel/implementations.adoc#channel-implementations-queuechannel[`Queu
 ----
 @Bean
 PollableChannel hazelcastQueueChannel(HazelcastInstance hazelcastInstance) {
-    return new QueueChannel(hazelcastInstance.Message<?>>getQueue("springIntegrationQueue"));
+    return new QueueChannel(hazelcastInstance.getQueue("springIntegrationQueue"));
 }
 ----