Hangs waiting for input on macOS runner

The run hangs waiting for you to select the architecture:

```
/Applications/Unity Hub.app/Contents/MacOS/Unity Hub -- --headless install --version 2022.3.13f1 --changeset 5f90a5ebde0f
? Please select preferred architecture: (Use arrow keys)
❯ Apple silicon 
  Intel 
```

The hub `--architecture` switch needs to be supported. See https://docs.unity3d.com/hub/manual/HubCLI.html

