There is another thread marked as answered, but it is not a working solution: Solved: How to use Databricks Repos with a service princip... - Page 2 - Databricks Community - 1178...

In Azure Devops, there doesn't seem to be a way to generate a PAT for a service principal user.  I want to use a devops repo as a source for a job step, but this is a blocker. 

You can connect with an Entra ID, which would seem plausible if Databricks implemented it.  Use service principals & managed identities - Azure DevOps | Microsoft Learn

Thanks for the help.