chore(deps-dev): bump vuepress-plugin-sitemap2

Bumps [vuepress-plugin-sitemap2](https://github.com/vuepress-theme-hope/vuepress-theme-hope/tree/HEAD/packages/sitemap2) from 2.0.0-beta.172 to 2.0.0-beta.174.
- [Release notes](https://github.com/vuepress-theme-hope/vuepress-theme-hope/releases)
- [Changelog](https://github.com/vuepress-theme-hope/vuepress-theme-hope/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vuepress-theme-hope/vuepress-theme-hope/commits/v2.0.0-beta.174/packages/sitemap2)

---
updated-dependencies:
- dependency-name: vuepress-plugin-sitemap2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -31,7 +31,7 @@
     "standard-version": "^9.5.0",
     "tailwindcss": "^3.2.4",
     "vuepress": "2.0.0-beta.60",
-    "vuepress-plugin-sitemap2": "^2.0.0-beta.172",
+    "vuepress-plugin-sitemap2": "^2.0.0-beta.174",
     "yaml": "^2.2.1"
   }
 }