avoid timeouts in tests, they add up quickly

packages/svelte/tests/runtime-runes/samples/async-const/_config.js

@@ -1,16 +1,12 @@
+import { tick } from 'svelte';
 import { test } from '../../test';
 
 export default test({
 	html: `<h1>Loading...</h1>`,
 
 	async test({ assert, target }) {
-		await new Promise((resolve) => setTimeout(resolve, 100));
-		assert.htmlEqual(
-			target.innerHTML,
-			`
-				<h1>Hello, world!</h1>
-				<input type="text"/>
-			`
-		);
+		await tick();
+
+		assert.htmlEqual(target.innerHTML, `<h1>Hello, world!</h1>`);
 	}
 });

packages/svelte/tests/runtime-runes/samples/async-const/main.svelte

@@ -1,23 +1,16 @@
 <script>
 	let name = $state('world');
-	/**
-	 * @template T
-	 * @param {T} value
-	 * @param {number} ms
-	 * @returns {Promise<T>}
-	 */
-	function wait(value, ms) {
-		return new Promise(resolve => setTimeout(resolve, ms, value));
-	}
 </script>
+
 <svelte:boundary>
 	{#snippet pending()}
 		<h1>Loading...</h1>
 	{/snippet}
+
 	{#snippet greet()}
-		{@const greeting = await wait(`Hello, ${name}!`, 50)}
+		{@const greeting = await `Hello, ${name}!`}
 		<h1>{greeting}</h1>
-		<input type="text" bind:value={name} />
 	{/snippet}
+
 	{@render greet()}
 </svelte:boundary>