Enable multi-arch Dockerfile for UBI and FIPS images

What does this MR do?

1. enable Dockerfile for multiarch in UBI and FIPS pipeline
2. keep build single arch in pipeline
3. use targetarch suffix for assets tar

Related issues

• Closes #810
• Related Support multiple architecture build for CNG images (gitlab-org/charts/gitlab#2899)
• Related Configure CNG build scripts to allow multi-arch... (gitlab-org/distribution/team-tasks#1142 - closed)

Merge requests

Depends on merge_requests/1250

Acceptance criteria

• valid multiarch UBI/FIPS images produced
  • Chart deployment is done on arm64 platform done using UBI/FIPS images
• UBI images pass RedHat certification

Checklist

See Definition of done.

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

Required

• Merge Request Title, and Description are up to date, accurate, and descriptive
• MR targeting the appropriate branch
• MR has a green pipeline on GitLab.com

Expected (please provide an explanation if not completing)

• Test plan indicating conditions for success has been posted and passes
• Documentation created/updated
• Integration tests added to GitLab QA
• The impact any change in container size has should be evaluated