No link to update woocommerce

Usually, the update wouldn’t show as available if the plugin version is too outdated, or the hosting provider blocks the updates.

In your case, you’ll want to manually update WooCommerce, and you can do so by following the information here: https://www.wpbeginner.com/beginners-guide/how-to-manually-update-wordpress-plugins-via-ftp/

I’d also highly suggest following this guide before updating: https://docs.woocommerce.com/document/how-to-update-woocommerce/ – making sure you have a full backup, and ideally testing on a staging site first, will help you avoid or mitigate any headaches.