add changeset and test

.changeset/tasty-steaks-smile.md

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+---
+"svelte": patch
+---
+
+fix: adjust render effect ordering

packages/svelte/tests/runtime-runes/samples/lifecycle-render-order-for-children-5/_config.js

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+import { test } from '../../test';
+import { log } from './log.js';
+
+export default test({
+	get props() {
+		return { n: 0 };
+	},
+
+	before_test() {
+		log.length = 0;
+	},
+
+	async test({ assert, component }) {
+		assert.deepEqual(log, ['$effect.pre 0', 'another $effect.pre 1', 'render n0', 'render i1']);
+
+		log.length = 0;
+		component.n += 1;
+
+		assert.deepEqual(log, ['$effect.pre 1', 'another $effect.pre 2', 'render n1', 'render i2']);
+	}
+});

packages/svelte/tests/runtime-runes/samples/lifecycle-render-order-for-children-5/log.js

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+/** @type {any[]} */
+export const log = [];

packages/svelte/tests/runtime-runes/samples/lifecycle-render-order-for-children-5/main.svelte

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+<script>
+	import { untrack } from 'svelte';
+	import { log } from './log.js';
+	let { n = 0 } = $props();
+	let i = $state(0);
+	function logRender(i) {
+		log.push(`render ${i}`);
+	}
+	$effect.pre(() => {
+		log.push(`$effect.pre ${n}`);
+		untrack(() => i++)
+	});
+	$effect.pre(() => {
+		log.push('another $effect.pre '+ i);
+	})
+</script>
+
+<p>{logRender(`n${n}`)}</p>
+<p>{logRender(`i${i}`)}</p>