Bump sitemap-ts from 1.6.1 to 1.7.3

Bumps [sitemap-ts](https://github.com/jbaubree/sitemap-ts) from 1.6.1 to 1.7.3.
- [Commits](jbaubree/sitemap-ts@v1.6.1...v1.7.3)

---
updated-dependencies:
- dependency-name: sitemap-ts
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -17,7 +17,7 @@
     "floating-vue": "^5.2.2",
     "global": "^4.4.0",
     "markdown-it-task-lists": "^2.1.1",
-    "sitemap-ts": "^1.6.1",
+    "sitemap-ts": "^1.7.3",
     "vanilla-cookieconsent": "^3.0.1"
   },
   "devDependencies": {