Bump kOps version in e2e-kops-grid-gcr-mirror-canary

[justinsb]

kOps version 1.28 does not support kube 1.30, which is now the version
published at https://dl.k8s.io/release/stable.txt

[justinsb]

/assign @ameukam

[dims]

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dims, justinsb

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• config/jobs/kubernetes/sig-k8s-infra/OWNERS [dims]

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[k8s-ci-robot]

@justinsb: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key canaries.yaml using file config/jobs/kubernetes/sig-k8s-infra/registry.k8s.io/canaries.yaml

In response to this:

kOps version 1.28 does not support kube 1.30, which is now the version
published at https://dl.k8s.io/release/stable.txt

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