Resolve "Continuous Verification CMAU Instrumentation MVC"

What does this MR do and why?

Adds metrics to count the number of users executing environment verification jobs, ci_users.ci_users_executing_verify_job_weekly and ci_users.ci_users_executing_verify_job_monthly

Screenshots or screen recordings

How to set up and validate locally

1. Generate service ping from Admin >> Settings >> Metrics and Profiling >> Preview Payload
2. Notice the new ci_users_executing_verify_job_weekly and ci_users_executing_verify_job_monthly keys under ci_users

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 #356197 (closed)