fix: replace mutex with atomic operations to optimize loggedEvents ma…

[fracasula]

…nagement

Description

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Linear Ticket

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Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 76.84%. Comparing base (68cefdf) to head (0e74717).

Files with missing lines	Patch %	Lines
...rnal/transformer/destination_transformer/logger.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@                           Coverage Diff                           @@
##           chore.upload-embedded-dt-diff-to-s3    #5806      +/-   ##
=======================================================================
- Coverage                                76.85%   76.84%   -0.02%     
=======================================================================
  Files                                      491      491              
  Lines                                    67099    67094       -5     
=======================================================================
- Hits                                     51572    51559      -13     
- Misses                                   12708    12711       +3     
- Partials                                  2819     2824       +5     

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