Make unit and integration go-compatibility presubmits required

[liggitt]

The go-compatibility unit and integration presubmits run on release branches differ from the normal unit/integration presubmits only by the go version used

This moves them to required on the branches they run on (release-1.x branches only) so we guard against merging changes that break compatibility with the go version the minor version was originally released with.

cc @dims

[liggitt]

/assign @aojea

[aojea]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aojea, liggitt

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[aojea]

/lgtm

let's see what we break XD

[k8s-ci-robot]

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

• key 1.24.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.24.yaml
• key 1.25.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.25.yaml
• key 1.26.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.26.yaml
• key 1.27.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.27.yaml
• key integration.yaml using file config/jobs/kubernetes/sig-testing/integration.yaml
• key make-test.yaml using file config/jobs/kubernetes/sig-testing/make-test.yaml

In response to this:

The go-compatibility unit and integration presubmits run on release branches differ from the normal unit/integration presubmits only by the go version used

This moves them to required on the branches they run on (release-1.x branches only) so we guard against merging changes that break compatibility with the go version the minor version was originally released with.

cc @dims

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