[interna/sharedcomponent] Use a ring buffer to restrict remembered status count

[TylerHelmuth]

Description

Use a ring buffer to only remember the last 5 events. This ensures we remember a reasonable number of events during startup, so that a status aggregator gets the events for all instances. Then during normal operation, when we're done adding sources and no longer need to replay events, we don't have to remember every single event.

Link to tracking issue

Closes #11818

Testing

go test status_test.go -count 1000 -failfast still passes with many tries.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.62%. Comparing base (be406d3) to head (e36001e).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11826   +/-   ##
=======================================
  Coverage   91.62%   91.62%           
=======================================
  Files         447      447           
  Lines       23729    23731    +2     
=======================================
+ Hits        21741    21743    +2     
  Misses       1613     1613           
  Partials      375      375           

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[mx-psi]

@TylerHelmuth Ready to merge once you fix the merge conflicts