Is your feature request related to a problem? Please describe.
I am using prometheus with prometheus operator to scrape metrics from VSO. We don't want to scrape metrics that we're not interested with.

Describe the solution you'd like
Add ability to relabel metrics scraped via prometheus servicemonitor via Helm values. For instance to rename metrics, to drop metrics, add labels, etc.

Describe alternatives you've considered
N/A

Additional context
I raise the PR #1230 to address this