ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component! when running mayavi/examples/mayavi/nongui.py

When running examples/mayavi/nongui.py, ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component! will be raised

Replication:
```
python mayavi/examples/mayavi/nongui.py
```

Full Stacktrace:
```
(py311) (base) cyliu@aus552cyliu mayavi % python3.11 examples/mayavi/nongui.py
2023-05-11 14:13:43.111 Python[5479:128963] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to /var/folders/2z/kylzj9s92y71cxscmljmpqrh0000gt/T/org.python.python.savedState
2023-05-11 14:13:44.228 ( 3.621s) [ 1F7C3] vtkImageData.cxx:1699 ERR| vtkImageData (0x7fc3a62804a0): Attempt to allocate scalars before scalar type was set!.
2023-05-11 14:13:44.228 ( 3.621s) [ 1F823] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F824] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F827] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F828] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F829] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F7C3] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F826] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
2023-05-11 14:13:44.228 ( 3.621s) [ 1F825] vtkImageData.cxx:1412 ERR| vtkImageData (0x7fc3a62804a0): No Scalar Field has been specified - assuming 1 component!
zsh: segmentation fault python3.11 examples/mayavi/nongui.py

```

Link: https://github.com/enthought/mayavi/blob/master/examples/mayavi/nongui.py

Env: MacOS, python3.11

Package Version Editable project location
------------------ ----------- -----------------------------------------
apptools 5.2.0
attrdict 2.0.1
attrdict3 2.0.2
blosc2 2.0.0
celiagg 2.1.3
certifi 2022.12.7
chaco 5.1.0 /Users/cyliu/Documents/3.11_test/chaco
charset-normalizer 3.1.0
configobj 5.0.8
contourpy 1.0.7
cPython 0.0.6
cycler 0.11.0
Cython 0.29.34
dnspython 2.3.0
enable 5.4.0.dev38 /Users/cyliu/Documents/3.11_test/enable
envisage 7.0.3
fonttools 4.39.2
h5py 3.8.0
idna 3.4
joblib 1.2.0
kiwisolver 1.4.4
matplotlib 3.7.1
mayavi 4.8.2.dev0 /Users/cyliu/Documents/3.11_test/mayavi
msgpack 1.0.5
numexpr 2.8.4
numpy 1.24.2
packaging 23.1
pandas 1.5.3
Pillow 9.4.0
pip 23.1
py-cpuinfo 9.0.0
PyAudio 0.2.13
pyface 8.0.0 /Users/cyliu/Documents/3.11_test/pyface
pygarrayimage 1.0
pyglet 2.0.5 /Users/cyliu/Documents/3.11_test/pyglet
Pygments 2.14.0
pymongo 4.3.3
pyparsing 3.0.9
PySide6 6.4.3
PySide6-Addons 6.4.3
PySide6-Essentials 6.4.3
python-dateutil 2.8.2
pythonw 3.0.3
pytz 2023.2
reportlab 3.6.12
requests 2.28.2
scikit-learn 1.2.2
scipy 1.10.1
setuptools 65.6.3
shiboken6 6.4.3
six 1.16.0
tables 3.8.0
threadpoolctl 3.1.0
traits 6.4.1
traitsui 8.0.0.dev0 /Users/cyliu/Documents/3.11_test/traitsui
urllib3 1.26.15
vtk 9.2.6
wxPython 4.2.0