Bump eslint-config-next from 15.5.4 to 15.5.5 in /docs

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 15.5.4 to 15.5.5.
- [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/v15.5.5/packages/eslint-config-next)

---
updated-dependencies:
- dependency-name: eslint-config-next
  dependency-version: 15.5.5
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

docs/package-lock.json

@@ -25,7 +25,7 @@
     "@types/react-dom": "^19.2.0",
     "autoprefixer": "^10.4.20",
     "eslint": "^9",
-    "eslint-config-next": "^15.5.4",
+    "eslint-config-next": "^15.5.5",
     "postcss": "^8.5.6",
     "tailwindcss": "^4.1.11",
     "typescript": "^5.9.2"