Logical Tree Tests not Being Run

### Describe the bug

Related to #472, it was reported that they couldn't see the tests when opening the Extensions component solution `\components\Extensions\OpenSolution.bat`.

Similarly, I don't see these tests in the test report in test space or the CI logs...

### Steps to reproduce

```text
Look for any logical tree tests from this file: https://github.com/CommunityToolkit/Windows/blob/main/components/Extensions/tests/Test_LogicalTreeExtensions.cs

Can't find test results...
```

### Expected behavior

Test results for these tests.

### Screenshots

_No response_

### Code Platform

- [X] UWP
- [X] WinAppSDK / WinUI 3
- [ ] Web Assembly (WASM)
- [ ] Android
- [ ] iOS
- [ ] MacOS
- [ ] Linux / GTK

### Windows Build Number

- [ ] Windows 10 1809 (Build 17763)
- [ ] Windows 10 1903 (Build 18362)
- [ ] Windows 10 1909 (Build 18363)
- [ ] Windows 10 2004 (Build 19041)
- [ ] Windows 10 20H2 (Build 19042)
- [ ] Windows 10 21H1 (Build 19043)
- [ ] Windows 10 21H2 (Build 19044)
- [ ] Windows 10 22H2 (Build 19045)
- [ ] Windows 11 21H2 (Build 22000)
- [ ] Other (specify)

### Other Windows Build number

_No response_

### App minimum and target SDK version

- [ ] Windows 10, version 1809 (Build 17763)
- [ ] Windows 10, version 1903 (Build 18362)
- [ ] Windows 10, version 1909 (Build 18363)
- [ ] Windows 10, version 2004 (Build 19041)
- [ ] Windows 10, version 2104 (Build 20348)
- [ ] Windows 11, version 22H2 (Build 22000)
- [ ] Other (specify)

### Other SDK version

_No response_

### Visual Studio Version

_No response_

### Visual Studio Build Number

_No response_

### Device form factor

_No response_

### Additional context

_No response_

### Help us help you

Start with components/Extensions/tests/Test_LogicalTreeExtensions.cs and components/Extensions/OpenSolution.bat, then inspect how that test project is included in the solution and CI test execution. Reproduce the missing results locally and compare the test space report or CI logs; done means the logical tree tests run and their results are visible in both expected reports.

Vom Indexierungsmodell aus dem Issue-Text verfasst.