Scippneutron

What's Changed
* Use improved scipp cmake package by SimonHeybrock in https://github.com/scipp/scippneutron/pull/368
* Update for next scippnexus by SimonHeybrock in https://github.com/scipp/scippneutron/pull/370


**Full Changelog**: https://github.com/scipp/scippneutron/compare/0.9.2...0.9.3

- Made compatible with scippnexus v0.2

- Update to scipp v0.16.2

See https://scipp.github.io/scippneutron/release/0.4.1/about/release-notes.html#v0-4-1-november-2021 for details.

- Update scipp dependency to v0.14.0
- First release for OSX arm64