update dompurify dependency for playground

Author: HackbrettXXX

index.html

@@ -126,9 +126,10 @@ <h3>PDF</h3>
       crossorigin="anonymous"
     ></script>
     <script
-      src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/2.0.12/purify.min.js"
-      integrity="sha512-Pkzp1f+T81Q7K8Dhj8Sc6SPhl+4D5JEe9TTjJLy7xbv+EdxStU9uRXEVzYOqjP+s6+lDAXo3nZ04szSG71ArhA=="
+      src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/3.1.6/purify.min.js"
+      integrity="sha512-jB0TkTBeQC9ZSkBqDhdmfTv1qdfbWpGE72yJ/01Srq6hEzZIz2xkz1e57p9ai7IeHMwEG7HpzG6NdptChif5Pg=="
       crossorigin="anonymous"
+      referrerpolicy="no-referrer"
     ></script>
 
     <script