Enable multi pipeline for testing

What does this MR do?

Since multi pipeline feature matured with 12.3 we can leverage that in order to test analyzers more integrated way. This MR will trigger js test project with build branch image

What are the relevant issue numbers?

gitlab-org/gitlab#10658 (closed)

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