epinio 1.2.1 chart: supporting images

[andreas-kupries]

Pull Request Checklist

• Change does not remove any existing Images or Tags in the images-list file
• Change does not remove / overwrite exiting Images or Tags in Rancher DockerHub
• If updating an existing entry, verify the SOURCE is still accurate and upstream hasn't been migrated to a new registry or repo (if they've migrated, a new repo request to EIO is needed to comply with the SOURCE DESTINATION TAG pattern)
• New entries are in format SOURCE DESTINATION TAG
• New entries are added to the correct section of the list (sorted lexicographically)
• New entries have a repo created in Rancher Dockerhub (where the image will be mirrored to)
• Changes to scripting or CI config have been tested to the best of your ability

Types of Change

New images (tags of existing bases):

• rancher/mirrored-epinio-epinio-server v1.2.0
• rancher/mirrored-library-nginx 1.23.0-alpine
• rancher/mirrored-library-registry 2.8.1

Linked Issues

Ref: rancher/charts#1814
Ref: epinio/epinio#1248 (comment)

Additional Notes

Final Checks after the PR is merged

• Confirm that you can pull the new images and tags from DockerHub