possibly include opengl option

in superqt, I had this line:

```
      - name: Linux opengl
        if: runner.os == 'Linux' && ( startsWith(matrix.backend, 'pyside6') || startsWith(matrix.backend, 'pyqt6') )
        run: sudo apt-get install -y libopengl0 libegl1-mesa libxcb-xinput0
```

not sure if that's necessary still?  But could be a good option to add here