fix: propagate Kubernetes client arguments

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Description

Backport of #2027 to v0.16.

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📝 Changelog fragment recorded

Thanks! This PR added the changelog fragment(s) below. Pending fragments are folded into CHANGELOG.md at release time, so it was intentionally not modified by this PR — your entry will appear in the next release:

• .changes/unreleased/fixed-20260806-221852.yaml