Reproduction steps:
1. Create a new project
2. Create a new Assembly Definition Asset (Assets > Create > Scripting > Assembly Definition)
3. Observe the Inspector window
Expected result: The created Asset is called “NewAssembly“ with no Assembly Definition References
Actual result: The created Asset is called “NewTestAssembly“ and has Test Runner Assembly Definition References
Reproducible with: 2023.3.0a9, 2023.3.0b7
Not reproducible with: 2021.3.35f1, 2022.3.20f1, 2023.2.10f1, 2023.3.0a8
Reproducible on: Windows 11
Not reproducible on: No other environments tested