docs(misc/Version Support Status): update URL for XLTS.dev

- the subdomain was switched to a path many months ago
- the angularjs.xlts.dev site will soon be used for hosting something else
  and the redirect removed (ASAP)

Closes angular#17136

docs/content/misc/version-support-status.ngdoc

@@ -56,6 +56,6 @@ You can read more about these plans in our [blog post announcement](https://blog
 
 If you need support for AngularJS beyond December 2021, you should consider:
 
-* [XLTS.dev](https://angularjs.xlts.dev)
+* [XLTS.dev](https://xlts.dev/angularjs)