[feature] pull images in manifest from ghcr

[mahdikhashan]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in Fixes #<issue number>, #<issue number>, ... format, will close the issue(s) when PR gets merged):
part of #2455

Checklist:

• Docs included if any changes are user facing

[tenzen-y]

@mahdikhashan I guess this PR requires rebase

[tenzen-y]

It seems Docker Login is not correct.
https://github.com/kubeflow/trainer/actions/runs/13884934312/job/38848363309

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[mahdikhashan]

It seems Docker Login is not correct. https://github.com/kubeflow/trainer/actions/runs/13884934312/job/38848363309

fixed here: https://github.com/kubeflow/trainer/pull/2530/files

[tenzen-y]

After https://github.com/kubeflow/trainer/actions/runs/13884934312/job/38848363434 complete, I will rerun E2E

[tenzen-y]

After https://github.com/kubeflow/trainer/actions/runs/13884934312/job/38848363434 complete, I will rerun E2E

Done

[tenzen-y]

Assuming E2E succeed

/lgtm
/approve

Thnak you

[google-oss-prow]

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