[Wf-Diagnostics] Emit usage logs after workflow diagnostics run

[sankari165]

What changed?
Usage logs are emitted after workflow diagnostics run as an activity in the diagnostics starter workflow. Since this is a on demand usecase. kafka messaging client is only setup when needed

Why?
collect data for every workflow diagnostics run

How did you test it?
unit tests

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

Attention: Patch coverage is 76.47059% with 12 lines in your changes missing coverage. Please review.

Project coverage is 73.52%. Comparing base (7e2c9dd) to head (8a58009).
Report is 7 commits behind head on master.

Files with missing lines	Patch %	Lines
service/worker/diagnostics/activities.go	46.15%	6 Missing and 1 partial ⚠️
service/worker/diagnostics/parent_workflow.go	85.29%	3 Missing and 2 partials ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
service/frontend/api/handler.go	65.99% <100.00%> (+0.01%)	⬆️
service/worker/diagnostics/module.go	100.00% <100.00%> (ø)
service/worker/diagnostics/parent_workflow.go	82.22% <85.29%> (+8.88%)	⬆️
service/worker/diagnostics/activities.go	78.78% <46.15%> (-21.22%)	⬇️

... and 13 files with indirect coverage changes

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[ketsiambaku]

LGTM