[Backport 10.3] CI: Update default image

Clemens Beckrequested to merge
cb/backport-ci-image-103 into 10-3-stable

What does this MR do?

Backport !5338 (merged) and !5281 (merged) (partially) to 10-3-stable to fix failing CI.

Related issues

Closes [CI] Pipeline on '10-3-stable' failed for commi... (#6664 - closed)

Relates CI: Pin image fails because of unknown hashicor... (#6660 - closed)

Author checklist

For general guidance, please follow our Contributing guide.

Required

For anything in this list which will not be completed, please provide a reason in the MR discussion.

  • Merge Request Title and Description are up to date, accurate, and descriptive.
  • MR targeting the appropriate branch.
  • MR has a green pipeline.
  • Documentation created/updated.
  • Tests added/updated.
  • Have you validated that your change works end-to-end on a real cluster deployment?
    • Describe how you did it in a comment.
  • Equivalent MR/issue for omnibus-gitlab opened.

Reviewers checklist

Edited by Stefan Bordei

Merge request reports