docs(setchecked): update setChecked docs to reflect async mode

Author: AtofStryker

docs/api/wrapper/setChecked.md

@@ -12,9 +12,11 @@ Sets checked value for input element of type checkbox or radio and updates `v-mo
 import { mount } from '@vue/test-utils'
 import Foo from './Foo.vue'
 
-const wrapper = mount(Foo)
-const radioInput = wrapper.find('input[type="radio"]')
-radioInput.setChecked()
+test('setChecked demo', async () => {
+  const wrapper = mount(Foo)
+  const radioInput = wrapper.find('input[type="radio"]')
+  await radioInput.setChecked()
+})
 ```
 
 - **Note:**

docs/ja/api/wrapper/setChecked.md

@@ -11,9 +11,11 @@ checkbox 型もしくは radio 型の input 要素の checked の値をセット
 import { mount } from '@vue/test-utils'
 import Foo from './Foo.vue'
 
-const wrapper = mount(Foo)
-const radioInput = wrapper.find('input[type="radio"]')
-radioInput.setChecked()
+test('setChecked demo', async () => {
+  const wrapper = mount(Foo)
+  const radioInput = wrapper.find('input[type="radio"]')
+  await radioInput.setChecked()
+})
 ```
 
 - **注:**

docs/ru/api/wrapper/setChecked.md

@@ -12,9 +12,11 @@
 import { mount } from '@vue/test-utils'
 import Foo from './Foo.vue'
 
-const wrapper = mount(Foo)
-const radioInput = wrapper.find('input[type="radio"]')
-radioInput.setChecked()
+test('setChecked demo', async () => {
+  const wrapper = mount(Foo)
+  const radioInput = wrapper.find('input[type="radio"]')
+  await radioInput.setChecked()
+})
 ```
 
 - **Примечание:**

docs/zh/api/wrapper/setChecked.md

@@ -12,9 +12,11 @@
 import { mount } from '@vue/test-utils'
 import Foo from './Foo.vue'
 
-const wrapper = mount(Foo)
-const radioInput = wrapper.find('input[type="radio"]')
-radioInput.setChecked()
+test('setChecked demo', async () => {
+  const wrapper = mount(Foo)
+  const radioInput = wrapper.find('input[type="radio"]')
+  await radioInput.setChecked()
+})
 ```
 
 - **注意：**