Update engine/src/main/java/com/redhat/cloud/notifications/processors…

…/camel/slack/SlackProcessor.java

Co-authored-by: Guillaume Duval <117720964+g-duval@users.noreply.github.com>

engine/src/main/java/com/redhat/cloud/notifications/processors/camel/slack/SlackProcessor.java

@@ -34,7 +34,7 @@ protected CamelNotification getCamelNotification(Event event, Endpoint endpoint)
 
         final Map<String, String> extras = properties.getExtras();
         if (null != extras) {
-            notification.channel = properties.getExtras().get("channel");
+            notification.channel = extras.get("channel");
         }
 
         notification.message = message;