Update deprecated slot syntax

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/32004

app/assets/javascripts/diffs/components/diff_discussions.vue

@@ -85,9 +85,11 @@ export default {
           :help-page-path="helpPagePath"
           @noteDeleted="deleteNoteHandler"
         >
-          <span v-if="renderAvatarBadge" slot="avatar-badge" class="badge badge-pill">
+          <template v-if="renderAvatarBadge" #avatar-badge>
+            <span class="badge badge-pill">
               {{ index + 1 }}
             </span>
+          </template>
         </noteable-discussion>
       </ul>
     </div>

changelogs/unreleased/update-deprecated-slot-syntax-in---app-assets-javascripts-diffs-component.yml

+---
+title: Update deprecated slot syntax in ./app/assets/javascripts/diffs/components/diff_discussions.vue
+merge_request: 32004
+author: Gilang Gumilar
+type: changed