chore(deps): update dependency next to v12 [security]

Author: renovate-bot

packages/website/package.json

@@ -13,7 +13,7 @@
     "@coderscamp/ui": "0.0.1",
     "@next/bundle-analyzer": "11.1.2",
     "@supabase/supabase-js": "1.25.0",
-    "next": "11.1.2",
+    "next": "12.1.0",
     "nodemailer": "6.7.0",
     "preact": "10.5.15",
     "react": "17.0.2",