Add skopeo and umoci to CI image

[swghosh]

Adds skopeo and umoci binaries to the check-payload image (useful when using scan local).

xref: https://redhat-internal.slack.com/archives/C05U13J3LLS/p1716476010936559?thread_ts=1715954957.336589&cid=C05U13J3LLS

[openshift-ci-robot]

@swghosh: This pull request explicitly references no jira issue.

In response to [this](https://github.com/openshift/check-payload/pull/189): >Adds skopeo and umoci binaries to the CI's check-payload image. > >xref: https://redhat-internal.slack.com/archives/C05U13J3LLS/p1716476010936559?thread_ts=1715954957.336589&cid=C05U13J3LLS Instructions for interacting with me using PR comments are available [here](https://prow.ci.openshift.org/command-help?repo=openshift%2Fcheck-payload). If you have questions or suggestions related to my behavior, please file an issue against the [openshift-eng/jira-lifecycle-plugin](https://github.com/openshift-eng/jira-lifecycle-plugin/issues/new) repository.

[swghosh]

/cc @mrunalp

[openshift-ci[bot]]

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[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mrunalp, swghosh

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