fix test

Author: Rich-Harris

packages/svelte/tests/runtime-runes/samples/binding-update-while-focused-3/_config.js

@@ -11,6 +11,7 @@ export default test({
 		input.value = 'Ab';
 		input.dispatchEvent(new InputEvent('input', { bubbles: true }));
 
+		await tick();
 		await tick();
 
 		assert.equal(input.value, 'AB');
@@ -20,6 +21,7 @@ export default test({
 		input.value = 'ABc';
 		input.dispatchEvent(new InputEvent('input', { bubbles: true }));
 
+		await tick();
 		await tick();
 
 		assert.equal(input.value, 'ABC');