fix: propagate Kubernetes client arguments

[enoodle]

Description

Propagates configured Kubernetes client QPS and burst arguments to admission, queue-controller, and podgroup-controller deployments.

Fixes the shared argument helper returning an unobserved slice. Adds coverage for default arguments and queue-controller override propagation.

Related Issues

N/A

Checklist

• Self-reviewed
• Added/updated tests (if needed)
• Updated documentation (if needed)
• Added a changelog fragment via make changelog (or applied the skip-changelog label). Do not edit CHANGELOG.md directly — pending fragments are folded into it at release time.

Breaking Changes

None.

Additional Notes

None.

[github-actions]

Total coverage: 54.5% -> 54.5% (delta 0.00%)

Merging this branch will decrease overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/admission	86.30% (ø)
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/common	78.44% (-0.47%)	👎
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/pod_group_controller	77.78% (ø)
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/queue_controller	76.15% (ø)

---

Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/admission/resources.go	89.92% (ø)	119	107	12
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/common/common.go	77.07% (-0.49%)	157 (+1)	121	36 (+1)	👎
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/pod_group_controller/resources.go	85.48% (ø)	62	53	9
github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/queue_controller/resources.go	81.48% (ø)	81	66	15

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.

Changed unit test files

• github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/admission/resources_test.go
• github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/pod_group_controller/pod_group_controller_test.go
• github.com/kai-scheduler/KAI-scheduler/pkg/operator/operands/queue_controller/queue_controller_test.go

[KaiPilotBot]

📝 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

[KaiPilotBot]

Backport failed for v0.9, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin v0.9
git worktree add -d .worktree/backport-2027-to-v0.9 origin/v0.9
cd .worktree/backport-2027-to-v0.9
git switch --create backport-2027-to-v0.9
git cherry-pick -x 386b7e999afb473b07fec1725a1c41827f406f2a

[KaiPilotBot]

Backport failed for v0.12, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin v0.12
git worktree add -d .worktree/backport-2027-to-v0.12 origin/v0.12
cd .worktree/backport-2027-to-v0.12
git switch --create backport-2027-to-v0.12
git cherry-pick -x 386b7e999afb473b07fec1725a1c41827f406f2a

[KaiPilotBot]

Backport failed for v0.14, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin v0.14
git worktree add -d .worktree/backport-2027-to-v0.14 origin/v0.14
cd .worktree/backport-2027-to-v0.14
git switch --create backport-2027-to-v0.14
git cherry-pick -x 386b7e999afb473b07fec1725a1c41827f406f2a

[KaiPilotBot]

Successfully created backport PR for v0.16:

• fix: propagate Kubernetes client arguments #2029

[KaiPilotBot]

Successfully created backport PR for v0.17:

• fix: propagate Kubernetes client arguments #2030