jobs: add cs-fetch-repos image-pushing canary prow job

[Priyankasaggu11929]

The PR adds a canary postsubmit prow job for building & pushing cs-fetch-repos image for Codesearch (aka Hound)

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Reference issue: kubernetes/k8s.io#2182

[chaodaiG]

the job config itself lgtm, I don't have enough context, so
/cc @BenTheElder

[ameukam]

/lgtm
/approve
/hold

@Priyankasaggu11929 @jimdaga Please remove the hold when you're ready.

@chaodaiG For context, this is for image building of https://github.com/kubernetes/k8s.io/blob/main/images/codesearch/cs-fetch-repos/Dockerfile. (more details here)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ameukam, Priyankasaggu11929

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• config/jobs/image-pushing/OWNERS [ameukam]

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[jimdaga]

/lgtm
/remove-hold

[jimdaga]

/lgtm
/remove-hold

[k8s-triage-robot]

The Kubernetes project has merge-blocking tests that are currently too flaky to consistently pass.

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/retest

[k8s-ci-robot]

@Priyankasaggu11929: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key k8s-staging-infra-tools.yaml using file config/jobs/image-pushing/k8s-staging-infra-tools.yaml

Details

In response to this:

The PR adds a canary postsubmit prow job for building & pushing cs-fetch-repos image for Codesearch (aka Hound)

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Reference issue: kubernetes/k8s.io#2182

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