Make `Diagnostics Wifi Cluster` match the spec (#30154)

* Fix name s/AssiciationFailure/AssociationFailureCause

* zap regen

* minor change to kick CI

* Fix Darwin availability annotations.

---------

Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>
diff --git a/examples/lock-app/lock-common/lock-app.matter b/examples/lock-app/lock-common/lock-app.matter
index 351c752..2034741 100644
--- a/examples/lock-app/lock-common/lock-app.matter
+++ b/examples/lock-app/lock-common/lock-app.matter
@@ -1350,7 +1350,7 @@
   }
 
   info event AssociationFailure = 1 {
-    AssociationFailureCauseEnum associationFailure = 0;
+    AssociationFailureCauseEnum associationFailureCause = 0;
     int16u status = 1;
   }