Add metrics for static reachability SCA feature

Problem to solve

To track usage and success of the static reachability feature we must add relevant metrics.

See https://docs.gitlab.com/ee/development/internal_analytics.

Proposal

Add metrics like

  • Measure user adoption metrics. How many users are using SR?
  • Quality metrics: How often this job is failing? How much time does it take to execute? 
  • Possible sbom-metadata mismatches ?

References

Edited by Yasha Rise