refactor(sbom): simplify relationship generation

[knqyf263]

Description

Refactor relationship generation in SBOM

Related PRs

• Blocked by
  • feat(go): construct dependencies of go.mod main module in the parser #7977
  • feat(go): construct dependencies in the parser #7973
• feat: add workspaceRelationship #7889

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).

[DmitriyLewen]

LGTM