Implemented checkout aceleração protection

[renzon]

close #4804

[codecov[bot]]

Codecov Report

Merging #4807 (67f3056) into master (5b7151d) will decrease coverage by 0.07%. The diff coverage is 28.57%.

@@            Coverage Diff             @@
##           master    #4807      +/-   ##
==========================================
- Coverage   91.94%   91.87%   -0.07%     
==========================================
  Files         245      245              
  Lines        6775     6782       +7     
==========================================
+ Hits         6229     6231       +2     
- Misses        546      551       +5     

Impacted Files	Coverage Δ
pythonpro/domain/checkout_domain.py	90.41% <28.57%> (-6.56%)	:arrow_down:

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