build(deps-dev): bump poku from 1.6.1 to 1.8.1 in /website

Bumps [poku](https://github.com/wellwelwel/poku) from 1.6.1 to 1.8.1.
- [Release notes](https://github.com/wellwelwel/poku/releases)
- [Changelog](https://github.com/wellwelwel/poku/blob/main/CHANGELOG.md)
- [Commits](wellwelwel/poku@v1.6.1...v1.8.1)

---
updated-dependencies:
- dependency-name: poku
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

website/package.json

@@ -46,7 +46,7 @@
     "eslint-plugin-react-hooks": "^4.6.0",
     "eslint-plugin-react-refresh": "^0.4.5",
     "packages-update": "^1.2.1",
-    "poku": "^1.6.1",
+    "poku": "^1.8.1",
     "prettier": "^3.2.5",
     "tsx": "^4.7.1",
     "typescript": "^5.3.3"