fix(ava): expect vm truthy as vue instance assertion

Author: clarkdo

packages/cna-template/template/frameworks/ava/test/specs/Logo.spec.js

@@ -1,8 +1,8 @@
-import { mount } from '@vue/test-utils'
 import test from 'ava'
+import { mount } from '@vue/test-utils'
 import Logo from '@/components/Logo.vue'
 
 test('is a Vue instance', (t) => {
   const wrapper = mount(Logo)
-  t.is(wrapper.vm, true)
+  t.truthy(wrapper.vm)
 })