Update deprecated slot syntax in...

Update deprecated slot syntax in `./app/assets/javascripts/confidential_merge_request/components/dropdown.vue`

app/assets/javascripts/confidential_merge_request/components/dropdown.vue

@@ -39,7 +39,7 @@ export default {
 
 <template>
   <gl-dropdown toggle-class="d-flex align-items-center w-100" class="w-100">
-    <template slot="button-content">
+    <template #button-content>
       <span class="str-truncated-100 mr-2">
         <icon name="lock" />
         {{ dropdownText }}

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

+---
+title: Update deprecated slot syntax in ./app/assets/javascripts/confidential_merge_request/components/dropdown.vue
+merge_request: 31999
+author: Gilang Gumilar
+type: changed