Enable CI for ppc64le

[mtarsel]

kind image for ppc64le is available here [1].
Semaphore CI now has an agent binary available for ppc64le [2].

ppc64le resources are available via Oregon State University Open Source Lab (OSU OSL). More info here [3]. I can help fill out the request form if needed.

Additionally, if needed, there are GitHub Actions runners for ppc64le [4].

I am available on slack to assist with anything else related to Power. Thanks!

[1] https://github.com/ppc64le-cloud/kind-image/tree/main
[2] semaphoreci/agent#243 (comment)
[3] https://osuosl.org/services/powerdev/
[4] https://community.ibm.com/community/user/powerdeveloper/blogs/gerrit-huizenga/2024/03/06/github-actions-runner-for-ibm-power-and-linuxone?CommunityKey=329e8662-cb5a-4e9e-80ee-47b1c3b5848c

[mtarsel]

Also I should mention I am happy to submit PRs to enable testing for ppc64le

[fasaxc]

Thanks for the offer to help, I'll try to get a bit of time on our side to help get ppc64le VMs running so that we have somewhere to run tests.

[tomastigera]

We in a process of defining what we need run in CI for other archs, namely arm64 as we do not need to run everything since that would explode in runtime and resource requirements. We can do the same for ppc then. Thanks for the offer, we will keep you in the loop.