chore: fix test

Author: bluwy

test/nuxt/a11y.spec.ts

@@ -2854,23 +2854,23 @@ describe('component accessibility audits', () => {
   describe('UserAvatar', () => {
     it('should have no accessibility violations', async () => {
       const component = await mountSuspended(UserAvatar, {
-        props: { username: 'testuser' },
+        props: { username: 'testuser', size: 'lg' },
       })
       const results = await runAxe(component)
       expect(results.violations).toEqual([])
     })
 
     it('should have no accessibility violations with short username', async () => {
       const component = await mountSuspended(UserAvatar, {
-        props: { username: 'a' },
+        props: { username: 'a', size: 'lg' },
       })
       const results = await runAxe(component)
       expect(results.violations).toEqual([])
     })
 
     it('should have no accessibility violations with long username', async () => {
       const component = await mountSuspended(UserAvatar, {
-        props: { username: 'verylongusernameexample' },
+        props: { username: 'verylongusernameexample', size: 'lg' },
       })
       const results = await runAxe(component)
       expect(results.violations).toEqual([])