Remove artifacts:reports:cluster_applications in GitLab
Problem to solve
In !63897 (merged), we removed the parser for articacts:reports:cluster_applications
(because it had no user-visible impact, and relied on code being removed), but left the YAML keywords in place to avoid breaking existing pipelines. This is ~"technical debt" that needs to be cleaned up, but removing it is a breaking change.
Proposal
Remove support for the artifacts:reports:cluster_applications
artifact in %15.0.
More info
At the time of writing, the feature depending on this artifact upload was deprecated in %14.0 and is scheduled for removal in %15.0,