Numpy 1.24.2 fails the pyTFM add-on

One of the files in the older openpiv version you use has `np.float` and this fails with the new numpy > 1.24

one workaround we found was to uninstall the default `numpy` and reinstall it 

```
pip uninstall numpy
pip install numpy"<1.24"
```

A better solution is to update your use to a more recent version of openpiv-python which resolved this problem long ago. 

