Fix stress test for Logs to use OTelSdkResult

[cijothomas]

Fixes #
Design discussion issue (if applicable) #

Changes

Please provide a brief description of the changes here.

Merge requirement checklist

• CONTRIBUTING guidelines followed
• Unit tests added/updated (if applicable)
• Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.1%. Comparing base (3a8cedd) to head (6558dff).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2627   +/-   ##
=====================================
  Coverage   79.1%   79.1%           
=====================================
  Files        119     119           
  Lines      22554   22554           
=====================================
  Hits       17846   17846           
  Misses      4708    4708           

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