WIP: Prevent Cocoa SDK from capturing errors that also get captured by .NET

[jpnurmi]

Test bed for:

• #3954
• getsentry/sentry-cocoa#6193

#skip-changelog

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 73.42%. Comparing base (03721c1) to head (7fdaad0).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4537      +/-   ##
==========================================
+ Coverage   73.39%   73.42%   +0.02%     
==========================================
  Files         479      479              
  Lines       17506    17506              
  Branches     3480     3480              
==========================================
+ Hits        12849    12854       +5     
+ Misses       3776     3773       -3     
+ Partials      881      879       -2     

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