Add Tracking Calculator to augment Tracking info in the Report

What does this MR do?

This MR adds the Tracking calculator and Post-analyzer script (transitive) dependencies in the Dockerfiles to augment tracking information in the Secret Detection Report. It sets REPORT_TYPE env to secret-detection indicating post-analyzer script to pass the Secret Detection report as the input to the Tracking Calculator. See this MR for the source of this env var.

UPDATE: In the interest of combining multiple significant changes within this major version release, this MR also updates dependencies to change the Secure Report Schema version to v15.1.0

Note: There are dependent MRs that need to be merged before we merge this MR.

What are the relevant issue numbers?

• Track Secret Detection findings by filename and... (gitlab-org/gitlab#434096) • Vishwa Bhat • 17.0 • On track

Does this MR meet the acceptance criteria?

• Changelog entry added
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer