[HotFix] Missing declaration in provisional water-leak-detector-app.m… (project-chip#35938)

Author: vivien-apple

examples/water-leak-detector-app/water-leak-detector-common/water-leak-detector-app.matter

@@ -938,6 +938,7 @@ cluster GeneralCommissioning = 48 {
   provisional readonly attribute access(read: administer) optional int16u TCMinRequiredVersion = 6;
   provisional readonly attribute access(read: administer) optional bitmap16 TCAcknowledgements = 7;
   provisional readonly attribute access(read: administer) optional boolean TCAcknowledgementsRequired = 8;
+  provisional readonly attribute access(read: administer) optional int32u TCUpdateDeadline = 9;
   readonly attribute command_id generatedCommandList[] = 65528;
   readonly attribute command_id acceptedCommandList[] = 65529;
   readonly attribute event_id eventList[] = 65530;