RANGER-5246: Add workflow to build multi-platform ranger images and push to DockerHub and GitHub Container Registry

[kumaab]

What changes were proposed in this pull request?

A new workflow to build ranger images: ranger, ranger-db, ranger-solr and ranger-zk with multi-arch support and publish them to GitHub Container Registry and optionally to DockerHub.

• Publish to DockerHub requires the workflow to be run manually by providing branch name and OAuth token
• OAuth Token is generated after successful authentication against ASF OAuth, more details here: https://idm.apache.org/api.html
• Workflow checks for PMC level permissions to authorize publishing to DockerHub
• Workflow can be conveniently used from the release branch at the end of a release to publish images.

How was this patch tested?

CI Run with successful build stage: https://github.com/kumaab/ranger/actions/runs/16375834642

[kumaab]

@adoroszlai, Could you please review as well, thanks.

[adoroszlai]

Thanks @kumaab for the patch.

[kumaab]

Workflow run: https://github.com/kumaab/ranger/actions/runs/21312549198

[kumaab]

Tested with release-ranger-2.8.0 branch in fork, all steps successful: https://github.com/kumaab/ranger/actions/runs/22499535391/