[RHOAIENG-12621] Update the updater github action to the latest branch

[jstourac]

This updates the digest updater GHA scripts for both regular workbench images and also runtime images.

On top of that, the runtime images GHA script was a bit enhanced and cleaned of a couple of shellcheck warnings (I can put it as a separate PR if it will be preferred).

https://issues.redhat.com/browse/RHOAIENG-12621

How Has This Been Tested?

Started relevant GHA via https://github.com/jstourac/notebooks/actions

Standard workbench images:

• https://github.com/jstourac/notebooks/actions/runs/11057100656
• Resulting PR - TBD

Runtime images:

• https://github.com/jstourac/notebooks/actions/runs/11057072140
• Resulting PR - TBD

---

The GHAs failed as we don't have any 2024b builds in https://quay.io/repository/opendatahub/workbench-images?tab=tags&tag=latest --- will re-run once we have some.

Note: one can see results of the openshift-ci jobs here https://prow.ci.openshift.org/?repo=opendatahub-io%2Fnotebooks.

Also, at the moment there is one extra commit in this PR that replaces names images for version N from python-3.9 to python-3.11 because otherwise it would still search for the python-3.9 based images! Version N-1 should be good without this hack. As a result, I plan to incorporate the update for the images as a part of this PR. This hack won't be necessary in the followup updates until we change the python version again.

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]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[jstourac]

This is waiting for this to be merged openshift/release#57392 - then once it's merged, we need to have another build of the 2024b images (let's re-sync to this branch again).

[harshad16]

Thanks for the excellent work.
i will move this from DRAFT to PR.
and use the newly updated changes to update the change.
if anything fails will open a follow PR.

[harshad16]

/lgtm
/approve

thanks 👍

[openshift-ci]

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