Mac builds broken on Github runner

[christofmuc]

Lastly, Mac builds were only passing sporadically. The reason is a race condition in the hdiutils usage of cpack.

This is the original Github runner ticket: actions/runner-images#7522

[christofmuc]

This is the corresponding cmake ticket: https://gitlab.kitware.com/cmake/cmake/-/issues/25671

[christofmuc]

So a solution similar to this seems to be needed: https://github.com HEXRD/hexrdgui/pull/1768

[christofmuc]

Hopefully fixed with release 2.5.0