Couple of things. @lamw talks about the new vc-ws1a-broker service on his recent blog post below.

https://williamlam.com/2023/09/what-is-vc-ws1a-broker-service-on-vcenter-server-appliance-vcsa.html

The article doesn't specifically cover the issue you're seeing but it does explain what the service is, and highlights that it does require a lot (2GB) of RAM, with VCSA 8 now requiring 14GB in total, so the first step is to ensure the ESXi host you are deploying on has sufficient RAM available to deploy the appliance.

Secondly, you may find some clues in the VCSA install log as described here. They are located at C:\Users\Username\AppData\Local\VMware\CIP\vcsaInstaller where username is the user account you used to run the installer.

HTH