fix(action): increase SYNC_TIMEOUT from 10m to 15m for kernel download retries

.github/actions/download-kernel/action.yml

@@ -50,7 +50,7 @@ runs:
 
         MAX_RETRIES=3
         RETRY_DELAY_SHORT=15
-        SYNC_TIMEOUT="10m"
+        SYNC_TIMEOUT="15m"
         attempt=1
 
         while [ $attempt -le $MAX_RETRIES ]; do