"Existing environment" doesn't show Microsoft Store python versions > 3.9

[debonte]

Steps to Reproduce

1. Install Python 3.9 and 3.10 from the Microsoft Store
2. Start VS and create new Python project
3. In environment combo box, select "Add Environment..."
4. Select "Existing environment" tab
5. Expand "Environment" combo box

Expected behavior
Both Python versions are included in the environment list.

Actual behavior
Only 3.9 is included in the list

Configuration information (If you are providing a diagnostics file (see below), skip this section)
VS Version: 17.9.0 Preview 4.0
PTVS version: 17.0.24002.3