Update dependency html2pdf.js to v0.12.1

Author: renovate[bot]

src/views/learn.html

@@ -17,7 +17,7 @@
 
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.5.3/jspdf.min.js"></script>
     <script src="https://unpkg.com/[email protected]/dist/html2canvas.js"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js" integrity="sha512-GsLlZN/3F2ErC5ifS5QtgpiJtWd43JWSuIgh7mbzZ8zBps+dvLusV+eNQATqgA/HdeKFVgA5v3S/cIrLF7QnIg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.12.1/html2pdf.bundle.min.js" integrity="sha512-D25Z8/1q2z65ZpJ3NzY6XiPZfwjhbv34OTQHDIZd+KPK+uWCovGt+fMkSzW8ArzCMFUgZt6Cdu7qoXNuy6a2GA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
 
     <script src="/public/scripts/basic.js"></script>
     <script src="/public/scripts/learn.js" defer></script>