feat(stackable-versioned): Add support for multiple k8s shortname arguments

[NickLarsenNZ]

Description

Part of stackabletech/issues#642.

stackable-versioned: Add support for multiple k8s shortname arguments.

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

# Author
- [x] Integration tests passed (for non trivial changes)

# Reviewer
- [ ] Code contains useful comments
- [ ] (Integration-)Test cases added
- [ ] Documentation added or updated
- [ ] Changelog updated
- [ ] Cargo.toml only contains references to git tags (not specific commits or branches)

# Acceptance
- [ ] Feature Tracker has been updated
- [ ] Proper release label has been added

[Techassi]

Very nice addition 👍

I think we should add this to the macro doc comment / adjust the current one and explain how multiple shortnames can be set.

[NickLarsenNZ]

Very nice addition 👍

I think we should add this to the macro doc comment / adjust the current one and explain how multiple shortnames can be set.

Fixed in 2278075

I also made the k8s argument docs more consistent in 975a65e (see the commit message).

[sbernauer]

Nice non-breaking change 👍
Docs have been updated as well.
I let you decide if you want to block this PR on @Techassi

[NickLarsenNZ]

Nice non-breaking change 👍
Docs have been updated as well.
I let you decide if you want to block this PR on @Techassi

Thanks. I will merge it so we can use it on a PR that is blocked by it.

Docs have been fixed