Update analyzers matrix with column support

What does this MR do?

Per discussion in https://gitlab.com/gitlab-org/gitlab-ee/issues/9849#note_143744812 I did a quick exploration of our analyzers to determine how common support is for identifying vulnerabilities per column. The results were quite mixed as @gonzoyumo pointed out but I wanted to document it.

What are the relevant issue numbers?

N/A

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