feat: update test

Author: waynzh

lib/rules/require-explicit-slots.js

@@ -149,7 +149,7 @@ module.exports = {
           )
 
           /** @type {string | undefined} */
-          let slotName = ''
+          let slotName
           if (!nameNode) {
             // If no slot name is declared, default to 'default'
             slotName = 'default'

tests/lib/rules/require-explicit-slots.js

@@ -171,7 +171,9 @@ tester.run('require-explicit-slots', rule, {
         </div>
       </template>
       <script setup lang="ts">
-      defineSlots<{}>()
+      defineSlots<{
+        default(props: { msg: string }): any
+      }>()
       </script>`
     }
   ],