numpy 1.24 (in)compatibility

[llimeht]

numpy 1.24 has now been released and so we will at some stage need compatibility with it. So far, I've only spotted 4 tiny things that need fixing, related to removal of deprecated functions. In particular, numpy 1.24 has finally removed the deprecated np.float definition. This should either be replaced by float if machine-variation is permitted (i.e. 32 bit or 64 bit depending on the architecture), or np.float64 if a specific size is needed.

See: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations

This is fortunately quite easy to fix in a backwards compatible way:

https://sources.debian.org/src/sasview/sid/debian/patches/numpy-1.24.patch/

The failures in p_invertor.py are caught by the test suite; I grepped the source looking for other instances which turned up the instance in GuiUtils.py.

SasView version (please complete the following information):

• Version: 5.0.5 and main (and any other release)

Operating system (please complete the following information):

• OS: all (tested on linux)

[lucas-wilkins]

@llimeht what's the status of this, is it waiting on changes to P(r) which is waiting on the pull request that has been sitting around for ages?

Adding blocked label for now.