Using libunwind for mac, since backtrace do not expect thread context…

[saf-e]

… (i.e. working just with current thread)

#skip-changelog

[codecov]

Codecov Report

Attention: Patch coverage is 55.00000% with 27 lines in your changes missing coverage. Please review.

Project coverage is 82.14%. Comparing base (d431ab9) to head (03eec55).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1088      +/-   ##
==========================================
- Coverage   82.38%   82.14%   -0.25%     
==========================================
  Files          53       53              
  Lines        7751     7811      +60     
  Branches     1216     1238      +22     
==========================================
+ Hits         6386     6416      +30     
- Misses       1253     1263      +10     
- Partials      112      132      +20     

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• Flaky Tests Detection - Detect and resolve failed and flaky tests