CI/CD Analytics: Add VSA deployment tiles to deployment frequency tab

What does this MR do and why?

This MR adds the VSA metrics Deploys and Deployment frequency to the Deployment frequency tab on the CI/CD Analytics page.

Screenshots or screen recordings

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #343729 (closed)