releng: Add jobs for the release-1.31 branch

[mehabhalodiya]

This PR manually adds the changes for the release-1.31 branch.

/assign @dims @xmudrii
cc @kubernetes/release-engineering

/sig release
/area release-eng
/priority critical-urgent

ref: kubernetes/sig-release#2577

[dims]

Looks like needs some touch up!

Gubernator configuration file is out of sync!
33d32
<   - pull-kubernetes-e2e-gce-ubuntu-containerd
44d42
<   - pull-kubernetes-verify-govet-levee
Run `gubernator/update_config.sh`

[mehabhalodiya]

Also, I see

could not write config: 4 errors occurred:
	* configuration error for (Dashboard) sig-release-1.26-blocking: contains no tabs
	* configuration error for (Dashboard) sig-release-1.26-informing: contains no tabs
	* could not find the referenced (TestGroup) pull-kubernetes-verify-govet-levee
	* could not find the referenced (TestGroup) pull-kubernetes-e2e-gce-ubuntu-containerd
FAIL	k8s.io/test-infra/config/tests/testgrids	33.849s

Should I remove 1.26 testgrids/dashboard? or do I understand this error wrong?

Edit: I removed it.

[dims]

/approve
/lgtm

thanks @mehabhalodiya

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[k8s-ci-robot]

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

• key generated.yaml using file config/jobs/kubernetes/generated/generated.yaml
• key 1.27.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.27.yaml
• key 1.28.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.28.yaml
• key 1.29.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.29.yaml
• key 1.30.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.30.yaml
• key 1.26.yaml using file ``
• key 1.31.yaml using file config/jobs/kubernetes/sig-release/release-branch-jobs/1.31.yaml

In response to this:

This PR manually adds the changes for the release-1.31 branch.

/assign @dims @xmudrii
cc @kubernetes/release-engineering

/sig release
/area release-eng
/priority critical-urgent

ref: kubernetes/sig-release#2577

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