Update kubeclient 3.1.0 -> 4.0
What does this MR do?
Update kubeclient rubygem dependency ~> 3.1.0 to ~> 4.0 (kubeclient follows SemVer)
The breaking change is dropping support for very old kubernetes version (<= 1.2 no longer works). Full changelog https://github.com/abonas/kubeclient/blob/master/CHANGELOG.md
What are the relevant issue numbers?
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
Tests added for this feature/bug -
Conforms to the code review guidelines -
Conforms to the merge request performance guidelines -
Conforms to the style guides -
Conforms to the database guides -
Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.