test(vue3): modernize PDFElements fixture mock

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/tests/mocks/pdf-elements/src/components/PDFElements.vue

@@ -7,8 +7,8 @@
 	<div class="pdf-elements-mock"></div>
 </template>
 
-<script>
-export default {
-	name: 'PDFElements',
-}
+<script setup>
+defineOptions({
+  name: 'PDFElements',
+})
 </script>