[alinaliBQ]

Rationale for this change

GH-55402

What changes are included in this PR?

send repo names in lower case format in docker_image function. This change affects linux-packages CI.

Are these changes tested?

Yes, in fork

Are there any user-facing changes?

N/A

Was AI used for this PR?

In accordance to the AI generation guidelines, please disclose below whether and how AI was used in this PR.

PR code and description written by:

• Human
• AI

Reviewed before submission by:

• Human
• AI
• Not reviewed

• GitHub Issue: [Ruby][CI] ghcr.io requires repository name to be lowercase #55402

[alinaliBQ]

@raulcd @kou PR is ready for review, the CI failures look unrelated to the PR.

[kou]

+1

[raulcd]

@alinaliBQ this makes sense to me. Do you have an example of a workflow failing prior to this change? I suspect this failed on your fork initially?

[alinaliBQ]

@raulcd I have an example failed run here:
https://github.com/Bit-Quill/arrow/actions/runs/41516649234/job/125521806742#step:8:25

ERROR: failed to build: invalid tag "ghcr.io/Bit-Quill/arrow/package-apache-arrow-almalinux-9": repository name must be lowercase

Caused by "ghcr.io/#{github_repository}/package-#{super}". Some older runs of Package Linux have expired so I referenced this custom workflow as example.