new: break on duplicate for object update

[Rafiot]

WiP, not working on MISP yet.

[codecov]

Codecov Report

Merging #709 (2eca674) into main (d71b094) will increase coverage by 0.07%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##             main     #709      +/-   ##
==========================================
+ Coverage   53.18%   53.25%   +0.07%     
==========================================
  Files          36       35       -1     
  Lines        6079     6059      -20     
==========================================
- Hits         3233     3227       -6     
+ Misses       2846     2832      -14     

Impacted Files	Coverage Δ
pymisp/api.py	12.32% <33.33%> (-0.01%)	⬇️

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