Support pydantic model

[superstar54]

Annotate inputs/outputs with Pydantic models.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 85.71429% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.02%. Comparing base (45fca06) to head (ec9721d).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/aiida_pythonjob/data/jsonable_data.py	74.19%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #66      +/-   ##
==========================================
- Coverage   90.06%   90.02%   -0.05%     
==========================================
  Files          22       22              
  Lines        1228     1283      +55     
==========================================
+ Hits         1106     1155      +49     
- Misses        122      128       +6     

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