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* [WIP] PVF: Split out worker binaries

* Address compilation problems and re-design a bit

* Reorganize once more, fix tests

* Reformat with new nightly to make `cargo fmt` test happy

* Address `clippy` warnings

* Add temporary trace to debug zombienet tests

* Fix zombienet node upgrade test

* Fix malus and its CI

* Fix building worker binaries with malus

* More fixes for malus

* Remove unneeded cli subcommands

* Support placing auxiliary binaries to `/usr/libexec`

* Fix spelling

* Spelling

Co-authored-by: Marcin S. <marcin@realemail.net>

* Implement review comments (mostly nits)

* Fix worker node version flag

* Rework getting the worker paths

* Address a couple of review comments

* Minor restructuring

* Fix CI error

* Add tests for worker binaries detection

* Improve tests; try to fix CI

* Move workers module into separate file

* Try to fix failing test and workers not printing latest version

- Tests were not findin...