build(deps-dev): Bump eslint-config-next from 14.2.15 to 15.1.6

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 14.2.15 to 15.1.6.
- [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/v15.1.6/packages/eslint-config-next)

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

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

Author: dependabot[bot]

package.json

@@ -28,7 +28,7 @@
     "@types/react-dom": "18.3.1",
     "@typescript-eslint/eslint-plugin": "^7.18.0",
     "eslint": "8.57.0",
-    "eslint-config-next": "14.2.15",
+    "eslint-config-next": "15.1.6",
     "eslint-config-prettier": "^10.0.1",
     "eslint-plugin-prettier": "^5.2.3",
     "prettier": "3.5.0",