Update dependency kubectl to v1.28.5

This MR contains the following updates:

Package	Update	Change
kubectl	major	1.27.9 -> 1.28.5

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

kubernetes/kubernetes

v1.28.5: Kubernetes v1.28.5

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See kubernetes-announce@. Additional binary downloads are linked in the CHANGELOG.

See the CHANGELOG for more details.

v1.28.4: Kubernetes v1.28.4

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See kubernetes-announce@. Additional binary downloads are linked in the CHANGELOG.

See the CHANGELOG for more details.

v1.28.3: Kubernetes v1.28.3

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See kubernetes-announce@. Additional binary downloads are linked in the CHANGELOG.

See the CHANGELOG for more details.

v1.28.2: Kubernetes v1.28.2

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See kubernetes-announce@. Additional binary downloads are linked in the CHANGELOG.

See the CHANGELOG for more details.

v1.28.1: Kubernetes v1.28.1

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See kubernetes-announce@. Additional binary downloads are linked in the CHANGELOG.

See the CHANGELOG for more details.

v1.28.0: Kubernetes v1.28.0

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See kubernetes-announce@. Additional binary downloads are linked in the CHANGELOG.

See the CHANGELOG for more details.

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