updating the cluster revision number for the onoff for silabs wifi (project-chip#32505)

Author: chirag-silabs

examples/lighting-app/silabs/data_model/lighting-wifi-app.matter

@@ -2597,7 +2597,7 @@ endpoint 1 {
     callback attribute eventList;
     callback attribute attributeList;
     ram      attribute featureMap default = 1;
-    ram      attribute clusterRevision default = 5;
+    ram      attribute clusterRevision default = 6;
 
     handle command Off;
     handle command On;

examples/lighting-app/silabs/data_model/lighting-wifi-app.zap

@@ -3377,7 +3377,7 @@
               "storageOption": "RAM",
               "singleton": 0,
               "bounded": 0,
-              "defaultValue": "5",
+              "defaultValue": "6",
               "reportable": 1,
               "minInterval": 0,
               "maxInterval": 65344,