WIP: [goblackhole]: bump version & add metric

[chifu1234]

What this PR does:

• Bump goblackhole version
• Adding Monitoring & Metric Support

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Notes for Reviewer:

Checklist:

• [ ] Pull Request title in format [chart]: Changed Something
• [ ] Updated documentation in the README.md.gotmpl file and executed helm-docs
• [ ] Chart Version bumped
• [ ] All commits are signed-off

[oliverbaehler]

@chifu1234 Stale?

[ln-ro]

Closing PR due to inactivity.