build(deps): bump next from 14.2.4 to 14.2.21

Bumps [next](https://github.com/vercel/next.js) from 14.2.4 to 14.2.21.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.4...v14.2.21)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -74,7 +74,7 @@
     "i18next": "23.11.5",
     "i18next-browser-languagedetector": "8.0.0",
     "lucia": "3.2.0",
-    "next": "14.2.4",
+    "next": "14.2.21",
     "nodemailer": "6.9.14",
     "nuqs": "1.17.4",
     "oslo": "1.2.1",