[1.23](backport #582) Revert "Remove building ppc (#504) (#513)"

[mergify]

This reverts #504 and #513

Closes #580

---

This is an automatic backport of pull request #582 done by Mergify.

[mergify]

Cherry-pick of d40b4f7 has failed:

On branch mergify/bp/1.23/pr-582
Your branch is up to date with 'origin/1.23'.

You are currently cherry-picking commit d40b4f7.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .github/release-drafter.yml
	modified:   README.md
	new file:   go/ppc/.dockerignore
	new file:   go/ppc/Dockerfile.tmpl
	new file:   go/ppc/Makefile
	new file:   go/ppc/rootfs/compilers.yaml
	new file:   go/ppc/rootfs/helloWorld.c

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go/Makefile.debian12

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: b66e121

History

• 💚 Build #907 succeeded 2f65f23

cc @v1v

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: b66e121

History

• 💚 Build #906 succeeded 2f65f23

cc @v1v

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: b66e121

History

• 💔 Build #995 failed 2f65f23

cc @v1v