Log stacktraces only in debug mode

[dweindl]

Closes #2186

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.40%. Comparing base (8d65524) to head (2cacf0a).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2366      +/-   ##
===========================================
- Coverage    77.66%   75.40%   -2.26%     
===========================================
  Files          324      324              
  Lines        20825    20824       -1     
  Branches      1454     1454              
===========================================
- Hits         16174    15703     -471     
- Misses        4648     4785     +137     
- Partials         3      336     +333     

Flag	Coverage Δ
cpp	?
cpp_python	34.25% <ø> (-0.01%)	⬇️
petab	36.86% <ø> (-0.01%)	⬇️
python	72.22% <ø> (-0.01%)	⬇️
sbmlsuite	?

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Files	Coverage Δ
src/amici.cpp	76.99% <ø> (-4.43%)	⬇️

... and 26 files with indirect coverage changes