Unit Tests not enabled on Release Build workflow

[jonvanausdeln]

Problem Statement

Current Release Build Workflows do not run any tests. There is a separate Full Test Workflow that runs all current automated tests (all of which are inherited from VSCode, no Positron specific tests)

Suggested Change

Add at least the unit tests to release builds on main. If those fail, then the build will fail overall.

I'm filing this issue to open up for discussion.