fix test

packages/svelte/tests/runtime-production/samples/keyed-each-unique/main.svelte

@@ -1,5 +1,5 @@
 <script>
-	let data = $state([1, 2, 3]);
+	let data = $state([1, 2, 3, 4, 5]);
 </script>
 
 <button onclick={() => data = [1, 1, 3, 1]}>add</button>