Bump sitemap from 7.1.1 to 8.0.0

Bumps [sitemap](https://github.com/ekalinin/sitemap.js) from 7.1.1 to 8.0.0.
- [Release notes](https://github.com/ekalinin/sitemap.js/releases)
- [Changelog](https://github.com/ekalinin/sitemap.js/blob/master/CHANGELOG.md)
- [Commits](ekalinin/sitemap.js@7.1.1...8.0.0)

---
updated-dependencies:
- dependency-name: sitemap
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -18,7 +18,7 @@
     "nuxt": "^3.11.2",
     "nuxt-icon": "^1.0.0-beta.4",
     "prettier": "^3.2.5",
-    "sitemap": "^7.1.1",
+    "sitemap": "^8.0.0",
     "vitest": "^1.6.0"
   },
   "dependencies": {