Migrate cryptocurrency.py to use pydantic models

[linuxdaemon]

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 84.25%. Comparing base (9121b11) to head (3034a05). :warning: Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #691      +/-   ##
==========================================
- Coverage   84.34%   84.25%   -0.09%     
==========================================
  Files         280      280              
  Lines       20511    20359     -152     
  Branches     1825     1802      -23     
==========================================
- Hits        17300    17154     -146     
+ Misses       2883     2882       -1     
+ Partials      328      323       -5     

Flag	Coverage Δ
unittests	84.25% <100.00%> (-0.09%)	:arrow_down:

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