Update TOC.yml to remove preview tag from confidential containers

Removing the preview tag from confidential container

Author: pkhandavilli

articles/container-instances/TOC.yml

@@ -111,9 +111,9 @@
       href: how-to-reuse-dns-names.md
     - name: Use Logic Apps connector
       href: ../connectors/connectors-create-api-container-instances.md?toc=/azure/container-instances/toc.json&bc=/azure/container-instances/breadcrumb/toc.json
-    - name: Deploy confidential containers using the Azure portal (preview)
+    - name: Deploy confidential containers using the Azure portal
       href: container-instances-tutorial-deploy-confidential-container-default-portal.md
-    - name: Deploy confidential containers using ARM (preview)
+    - name: Deploy confidential containers using ARM
       href: container-instances-tutorial-deploy-confidential-containers-cce-arm.md
   - name: Container scenarios
     items: