test: Nit improvement to Logger test logic

[cijothomas]

Modified validation logic to validate the exported LogRecord itself, not the logger used to emit the log.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.3%. Comparing base (29eda05) to head (495f93e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2708   +/-   ##
=====================================
  Coverage   79.3%   79.3%           
=====================================
  Files        123     123           
  Lines      22654   22670   +16     
=====================================
+ Hits       17970   17986   +16     
  Misses      4684    4684           

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