etcd: mark etcd arm integration presubmits as blocking

[ivanvc]

The integration ARM jobs have been relatively stable over the past two weeks:

• 1 CPU
• 2 CPUs
• 4 CPUs

Therefore, it would be a good time to mark them as blocking and remove the GitHub workflow from the repository (as these are the last remaining ARM jobs we have).

Part of #32754 / kubernetes/k8s.io#6102

[jmhbnz]

/lgtm
/approve

[k8s-ci-robot]

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[k8s-ci-robot]

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

• key etcd-presubmits.yaml using file config/jobs/etcd/etcd-presubmits.yaml

In response to this:

The integration ARM jobs have been relatively stable over the past two weeks:

• 1 CPU
• 2 CPUs
• 4 CPUs

Therefore, it would be a good time to mark them as blocking and remove the GitHub workflow from the repository (as these are the last remaining ARM jobs we have).

Part to #32754 / kubernetes/k8s.io#6102

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