Updates Trace Analytics documentation for Data Prepper 2.0

[dlvenable]

Description

Updates documentation to set the record_type: event property. Also includes a short migration guide to 2.0 for Trace pipelines.

Issues Resolved

Resolves #1735

Check List

• New functionality includes testing.
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed with a real name per the DCO

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[graytaylor0]

This record_type parameter will be removed completely in Data Prepper 2.0, and only support event right? So we will have to revert this soon if it is merged

[codecov-commenter]

Codecov Report

Merging #1748 (071a87f) into main (9b41f3a) will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #1748      +/-   ##
============================================
+ Coverage     93.38%   93.40%   +0.01%     
  Complexity     1372     1372              
============================================
  Files           182      182              
  Lines          4068     4077       +9     
  Branches        323      323              
============================================
+ Hits           3799     3808       +9     
  Misses          189      189              
  Partials         80       80              

Impacted Files	Coverage Δ
...rwarder/discovery/AwsCloudMapPeerListProvider.java	92.59% <0.00%> (-2.53%)	⬇️
.../opensearch/dataprepper/parser/PipelineParser.java	88.23% <0.00%> (-0.88%)	⬇️
...rch/dataprepper/meter/EMFLoggingMeterRegistry.java	98.21% <0.00%> (+0.15%)	⬆️
.../org/opensearch/dataprepper/pipeline/Pipeline.java	92.85% <0.00%> (+4.28%)	⬆️

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[dlvenable]

This record_type parameter will be removed completely in Data Prepper 2.0, and only support event right? So we will have to revert this soon if it is merged

Possibly, that is correct. But, for now, users are having difficulty starting Data Prepper.

I've mentioned in a few threads that it may be valuable to keep record_type: event as an option specifically so that pipeline authors don't need to remove this line for Data Prepper 2.0. Now, I'm also coming to think that it will help with our documentation. I'm personally still interested in that support.

[oeyh]

This looks good to me. The PR to remove record_type has been merged and this PR covers use cases both before and after 2.0.