Update deprecated slot syntax

app/assets/javascripts/issue_show/components/fields/description.vue

@@ -45,11 +45,12 @@ export default {
       :markdown-docs-path="markdownDocsPath"
       :can-attach-file="canAttachFile"
       :enable-autocomplete="enableAutocomplete"
+      :textarea-value="formState.description"
     >
+      <template #textarea>
         <textarea
           id="issue-description"
           ref="textarea"
-        slot="textarea"
           v-model="formState.description"
           class="note-textarea js-gfm-input js-autosize markdown-area
           qa-description-textarea"
@@ -61,6 +62,7 @@ export default {
           @keydown.ctrl.enter="updateIssuable"
         >
         </textarea>
+      </template>
     </markdown-field>
   </div>
 </template>

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

+---
+title: Update deprecated slot syntax in ./app/assets/javascripts/issue_show/components/fields/description.vue
+merge_request: 31979
+author: Gilang Gumilar
+type: other