[CI] Fail the e2e tests if the image builds fail

[HumairAK]

If the image builds fail, the e2e tests will proceed as usual, but fail to deploy with "imagePullBackOff" states for the associated deployments.

Relevant gh workflows:

• https://github.com/kubeflow/pipelines/actions/runs/9599914551/workflow?pr=10787
• https://github.com/kubeflow/pipelines/actions/runs/9599914548/job/26474847944?pr=10787

[HumairAK]

Example: https://github.com/kubeflow/pipelines/actions/runs/9599914548/job/26474847944?pr=10787

We could have notified a lot earlier for this failure

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[ElayAharoni]

/assign

[ElayAharoni]

i think this issue is fixed by this pr #11115
i created and was merged yesterday

[HumairAK]

thanks @ElayAharoni !