Remove logic to generate a DS report.

What does this MR do?

Thir MR removes all code that generates the Dependency Scanning report artifact when executing the Container Scanning Analyzer. The DS report was used to provide the list of components but this is now achieved with the cycloneDX SBOM report instead and in 17.0 the rails application will no longer leverage the content of the Dependency Scanning report for this purpose.

⚠ This MR targets the temporary v7.x branch so that the change is not released until we manually merge v7.x into master during 17.0.

What are the relevant issue numbers?

gitlab-org/gitlab#439782 (closed)

Does this MR meet the acceptance criteria?

• Changelog trailer added
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer