[Merged by Bors] - Added kuttl test suites

[razvan]

Description

Requires beku 0.0.7. Upgrade with:

pip install --upgrade beku-stackabletech

Added three test suites:

• latest : only run tests with the latest versions.
• smoke : only run smoke tests.
• openshift : only run latest versions with openshift=true.

To run the latest test suite:

rm -rf tests/_work && beku -s latest

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] Changes are OpenShift compatible
- [x] CRD changes approved
- [x] Helm chart can be installed and deployed operator works
- [x] Integration tests passed (for non trivial changes)

# Reviewer
- [x] Code contains useful comments
- [x] (Integration-)Test cases added
- [x] Documentation added or updated
- [x] Changelog updated
- [x] 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

Once the review is done, comment bors r+ (or bors merge) to merge. Further information

[razvan]

bors merge

[bors[bot]]

Pull request successfully merged into main.

Build succeeded!

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• All tests passed