I found more information and see that the update is bundled, I would assume in the ESXi update.
https://kb.vmware.com/s/article/340
Additional Information
VMware Tools are normally bundled with VMware products as well as security updates when applicable. As of VMware Tools version 10, customers also have the option to download from My VMware.
So I guess the question is, is there a way to find out that version number in the GUI before installing or from the command line? Or just guess that it is the same version that is released at the same time the ESXi Upgrade?