RUM-15255: Update RUM schema to include profiling status for RUM errors and operation step vitals

[0xnm]

What does this PR do?

Updates RUM schema to include profiling status for RUM errors and operation step vitals, plus some other minor updates to simplify sync with upstream in the future.

Targeting develop branch so that all feature branches can benefit from this change.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[chatgpt-codex-connector]

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Reviewed commit: dd2a967060

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.45%. Comparing base (b3abae6) to head (2ee56a2).
⚠️ Report is 11 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3286      +/-   ##
===========================================
- Coverage    71.63%   71.45%   -0.18%     
===========================================
  Files          943      943              
  Lines        34815    34815              
  Branches      5899     5899              
===========================================
- Hits         24937    24874      -63     
- Misses        8244     8280      +36     
- Partials      1634     1661      +27     

Files with missing lines	Coverage Δ
...g/android/rum/internal/DatadogLateCrashReporter.kt	89.76% <100.00%> (-1.46%)	⬇️
...g/android/rum/internal/domain/scope/RumEventExt.kt	93.30% <100.00%> (-1.99%)	⬇️

... and 37 files with indirect coverage changes

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