* revert behavior of sourcing .profile in .zprofile

https://github.com/devcontainers/features/pull/736/files#diff-3e71c0a0669a0410f7dd0d8f2b83f3b6bf6b525d3eabd354f19f32822da669fcR460-R463

* add test

* increment version

* create empty .zprofile is not present, and fix test

* temporarily add back .profile to .zprofile (only if file did not exist)