[Merged by Bors] - feat: Support podOverrides

[sbernauer]

Description

Part of stackabletech/issues#346

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
- [ ] Changes are OpenShift compatible
- [ ] CRD changes approved
- [ ] Helm chart can be installed and deployed operator works
- [ ] 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
- [x] Feature Tracker has been updated
- [x] Proper release label has been added

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

[sbernauer]

Started https://ci.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/druid-operator-it-custom/108/

[maltesander]

LGTM, just nitpicking!

[sbernauer]

@maltesander please have a look at the new test

[sbernauer]

Let's use Azure https://ci.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/druid-operator-it-custom/109/

[sbernauer]

https://ci.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/druid-operator-it-custom/110/

[maltesander]

Looks good!

[sbernauer]

bors r+
Resources test failed, fixed it and passed locally

[bors]

Pull request successfully merged into main.

Build succeeded!

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• All tests passed