KMS-522: Update trigger lambda to not use step function but just call other lambda async.

[cgokey]

Overview

What is the feature?

Getting a timeout when the step function calls the publish handler. Replaced the step function with a simpler asynchronous lambda call from the trigger handler.

What is the Solution?

Trigger function now invokes the publish handler asynchronous.

What areas of the application does this impact?

Calling publish handler.

Testing

Hopefully be able to call the publish handler now.

Checklist

• I have added automated tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.74%. Comparing base (c3a64cb) to head (b1f495a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #38   +/-   ##
=======================================
  Coverage   99.74%   99.74%           
=======================================
  Files         120      120           
  Lines        1983     1998   +15     
  Branches      473      476    +3     
=======================================
+ Hits         1978     1993   +15     
  Misses          5        5           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.