feat: Update subcommands to rely on analyzers/report/v2

What does this MR do?

Switches from ruleset to ruleset/v2 in order to handle renaming of Issue struct to Vulnerability

This isn't a strict semver change but necessary for analyzers to use both packages simultaneously

Also switches CI to go.yml since danger no longer works for this repo using a default branch other than master, see sibling MR ruleset!2 (merged)

What are the relevant issue numbers?

Does this MR meet the acceptance criteria?

• Changelog entry 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