Update apcu.twig

Author: RobiNN1

templates/dashboards/apcu/apcu.twig

@@ -66,7 +66,7 @@
                 {% endfor %}
             {% else %}
                 <tr>
-                    <td colspan="6" class="p-5 text-center">No cached keys.</td>
+                    <td colspan="8" class="p-5 text-center">No cached keys.</td>
                 </tr>
             {% endif %}
             </tbody>