Build PyInstaller on github actions

[DolicaAkelloEgwel]

Issue

Closes #1683

Description

Creates an action for a PyInstaller build.

Acceptance Criteria

Check that the output shows an exe has been created. Download the artifact from here: https://github.com/mantidproject/mantidimaging/actions/runs/4073870818

Documentation

Updated release notes.

[coveralls]

Coverage: 77.115%. Remained the same when pulling a690549 on 1683-single-file-pyinstaller-action into 69b8ea3 on main.

[samtygier-stfc]

Looks good. I can download the MantidImaging.zip https://github.com/mantidproject/mantidimaging/actions/runs/4073870818

Lets also see if we can get this working to attach that file to a release/tag. So that it can be public.

I think https://github.com/softprops/action-gh-release is the right tool to use. We probably want draft and prerelease set true, and tag_name to nightly. Once it works we can tweak when it actually runs.

[samtygier-stfc]

This is held up because the packages built on github actions do not have functioning CUDA.