update test

Author: Rich-Harris

packages/svelte/tests/snapshot/samples/bind-component-snippet/_expected/server/index.svelte.js

@@ -1,9 +1,9 @@
 import * as $ from 'svelte/internal/server';
 import TextInput from './Child.svelte';
 
-const snippet = ($$payload) => {
+function snippet($$payload) {
 	$$payload.out += `<!---->Something`;
-};
+}
 
 export default function Bind_component_snippet($$payload) {
 	let value = '';