Extend CI image check to also runtime images

[jstourac]

Description

Extens the CI check for the images we reference in our metadata to also runtime-images.

https://issues.redhat.com/browse/RHOAIENG-7882

How Has This Been Tested?

Simply run: ./ci/check-runtime-images.sh on your local machine (jq and skopeo tool needed).

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[openshift-ci]

@jstourac: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/notebooks-e2e-tests	29b1188	link	true	/test notebooks-e2e-tests
ci/prow/images	29b1188	link	true	/test images

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[jstourac]

Hi guys, any opinions? Can this be moved forward so we have this check in our next release branch? Thanks for any comments or proposals for improvements! 🙂

[harshad16]

This is great 💯
Thanks

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: harshad16

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