image-builder Remove Centos-7 due to end of life June 2024

Change description

Centos-7 has been unsupported / end of life since June 30th 2024. As is no longer a supported OS we also shouldn't support it as a built-in option for image-builder.

Related issues

N/A

Additional context

References for end of life status:

https://endoflife.software/operating-systems/linux/centos
https://mirrors.edge.kernel.org/centos/7/readme

Jun 26 '25 14:06 AverageMarcus

/test pull-ova-all

Jun 26 '25 15:06 AverageMarcus

/test pull-ova-all

Jun 27 '25 05:06 AverageMarcus

/retest-required

Jun 27 '25 12:06 AverageMarcus

/retest

Jun 30 '25 07:06 AverageMarcus

/assign @drew-viles @mboersma

Jun 30 '25 07:06 AverageMarcus

😞 That test is being so flakey lately.

/test pull-ova-all

Jun 30 '25 09:06 AverageMarcus

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: drew-viles

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Jun 30 '25 09:06 k8s-ci-robot

It's failing for that weird rm issue again 🤨 I dunno if there's a race condition or something.

/test pull-ova-all

Jun 30 '25 09:06 AverageMarcus

Finally.

/unhold

Jun 30 '25 10:06 AverageMarcus