chore(deps-dev): bump eslint-config-next in /template-nextjs

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 14.1.0 to 16.1.6.
- [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/v16.1.6/packages/eslint-config-next)

---
updated-dependencies:
- dependency-name: eslint-config-next
  dependency-version: 16.1.6
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

template-nextjs/package.json

@@ -24,7 +24,7 @@
     "@types/react-dom": "^19.2.3",
     "@typescript-eslint/eslint-plugin": "^8.55.0",
     "eslint": "^10.0.0",
-    "eslint-config-next": "14.1.0",
+    "eslint-config-next": "16.1.6",
     "prettier": "^3.2.5",
     "typescript": "^5.3.3"
   }