prepare new release 0.5.8

improve local build process (#23)

* dont echo the commands from justfile when run

* update package version for release

* use SPDX expression for license

next version for release

fix github secret name

create workflow for publishing to pypi with gha (#21)

* create workflow for publishing to pypi with gha

* simple version with pypi API token

* use latest checkout action

* remove CODEOWNERS file