pysolfc-2.5.5: Try to fix the macos x app artefacts.

See
https://travis-ci.community/t/pysolfc-2-5-4-tag-deploying-of-an-app-macos-app-silently-fails/854/2
.

pysolfc-2.5.4

[travis] osx - add pkg wo cleanup

pysolfc-2.5.3

[travis] osx - add pkg

pysolfc-2.5.2

[travis] osx fix - #5

pysolfc-2.5.1

[travis] osx pkg release