build(deps-dev): bump eslint-config-next from 16.1.6 to 16.2.1

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 16.1.6 to 16.2.1.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v16.2.1/packages/eslint-config-next)

---
updated-dependencies:
- dependency-name: eslint-config-next
  dependency-version: 16.2.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -54,7 +54,7 @@
     "@types/react-dom": "19.2.3",
     "@types/react-syntax-highlighter": "^15.5.13",
     "eslint": "9.39.2",
-    "eslint-config-next": "16.1.6",
+    "eslint-config-next": "16.2.1",
     "eslint-plugin-react": "^7.37.5",
     "eslint-plugin-react-hooks": "^7.0.1",
     "tailwindcss": "^4",