Drop Pydantic v1

[mattwthompson]

Description

Fixes #91

Status

• Ready to go

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.32%. Comparing base (f9fc1f3) to head (9616143).

Files with missing lines	Patch %	Lines
descent/train.py	85.71%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #93      +/-   ##
==========================================
+ Coverage   97.66%   99.32%   +1.66%     
==========================================
  Files          11       11              
  Lines        1071     1041      -30     
==========================================
- Hits         1046     1034      -12     
+ Misses         25        7      -18     

Flag	Coverage Δ
unittests	99.32% <85.71%> (+1.66%)	⬆️

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