RHOAIENG-14552: Reapply "RHOAIENG-10827: feat(nbcs): update ose-oauth-proxy image digest reference from 4.8 to the latest 4.14 version (#388)"

[jiridanek]

https://issues.redhat.com/browse/RHOAIENG-14552

Reverts #419 (which was itself a revert of #388, therefore this is a reapplication of the original PR)

We can do this after

• RHOAIENG-15335: feat(odh-nbc/webhook): only update oauth-proxy image in CREATE events #437

is merged.

[harshad16]

/lgtm
/approve

thanks for bring this back 💯

[openshift-ci]

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[jiridanek]

/override ci/prow/odh-notebook-controller-e2e
https://issues.redhat.com/browse/RHOAIENG-15492

[openshift-ci]

@jiridanek: Overrode contexts on behalf of jiridanek: ci/prow/odh-notebook-controller-e2e

In response to this:

/override ci/prow/odh-notebook-controller-e2e
https://issues.redhat.com/browse/RHOAIENG-15492

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