Add note about using @eventlistener on lazy beans

Closes gh-34057

Author: snicoll

framework-docs/modules/ROOT/pages/core/beans/context-introduction.adoc

@@ -578,6 +578,8 @@ Kotlin::
 ----
 ======
 
+NOTE: Do not define such beans to be lazy as the `ApplicationContext` will honour that and will not register the method to listen to events.
+
 The method signature once again declares the event type to which it listens,
 but, this time, with a flexible name and without implementing a specific listener interface.
 The event type can also be narrowed through generics as long as the actual event type