Add expected report for js-npm-shrinkwrap

What does this MR do?

• Add expected Dependency Scanning report for the shrinkwrap-FREEZE branch of the js-npm test project
• Update the CI config and add QA job that triggers shrinkwrap-FREEZE

What are the relevant issue numbers?

None

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