That’ll be a question for Google, I’m afraid. It depends what you’re trying to cache, or requesting to be crawled. You could ask them to try again, or specify specific URLs: Pídele a Google que vuelva a rastrear tu sitio web | Central de la Búsqueda de Google | Documentación | Google Developers
If you’re trying to crawl the deploy preview itself, that’s prevented by our introduction of canonical headers: Improved SEO with canonical link headers