Rework beluga_benchmark using LAMBKIN

[hidmic]

Proposed changes

Precisely what the title says.

Type of change

• 🐛 Bugfix (change which fixes an issue)
• 🚀 Feature (change which adds functionality)
• 📚 Documentation (change which fixes or extends documentation)

Checklist

• Lint and unit tests (if any) pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• All commits have been signed for DCO

[hidmic]

FYI @glpuga this needs some love still but the bulk of it is there.