Upgrade to node 22

Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/node:18-alpine AS build-env
+FROM docker.io/library/node:22-alpine AS build-env
 
 ENV NODE_ENV=production
 ENV PORT=3000

src/app/club/mailinglist.tsx

@@ -24,8 +24,9 @@ export default function MailingListSignupForm(): React.JSX.Element {
                     placeholder="Jane Doe" />
             </div>
             <input className="hidden" type="checkbox" name="l" checked value="ea5f1e67-2ff0-4762-8893-0645e93a8306" />
-            <div className="h-captcha flex justify-center" data-sitekey="77aeddb4-cfda-4a3e-b262-0288a4e4664a"></div>
-            <script src="https://js.hcaptcha.com/1/api.js" async defer></script>
+            <altcha-widget class="flex justify-center" challengeurl="https://lists.orcas.community/api/public/captcha/altcha"></altcha-widget>
+            <script type="module" src="https://lists.orcas.community/public/static/altcha.umd.js" async defer></script>
+
             <input
                 className="w-full rounded-md flex justify-center border border-transparent bg-indigo-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2"
                 id="submit"