PySide: creating venv for empty application fails

Test steps:
1. Select 'New Project... -> Application (Qt for Python) -> Empty Window'
2. Select location
3. Select 'Next' in 'Define class' page
4. Select 'PySide 6' for 'Define Python Interpreter'
5. Select Virtual Environment in 'Kit Selection' page
6. Finish the wizard

Result:
Virtual Environment is not created. Venv is created correctly for other PySide templates.