fix(selftests): update target names in selftests for github action scripting

[jiridanek]

Description

This is a followup to

• Switch base image to UBI for AMD rocm install #620 (review)

How Has This Been Tested?

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

[caponetto]

/lgtm

[atheo89]

/lgtm

[openshift-ci]

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[jiridanek]

/override ci/prow/rocm-notebooks-e2e-tests
/override ci/prow/images

[openshift-ci]

@jiridanek: Overrode contexts on behalf of jiridanek: ci/prow/images, ci/prow/rocm-notebooks-e2e-tests

In response to this:

/override ci/prow/rocm-notebooks-e2e-tests
/override ci/prow/images

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