refactor: Update generated models from published OpenAPI spec

[apify-service-account]

This PR updates the auto-generated Pydantic models from the published OpenAPI specification.

Changes

• Regenerated src/apify_client/_models.py using datamodel-codegen

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.80%. Comparing base (6065fb0) to head (e9fb64b).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #708      +/-   ##
==========================================
- Coverage   95.00%   94.80%   -0.20%     
==========================================
  Files          45       45              
  Lines        4601     4584      -17     
==========================================
- Hits         4371     4346      -25     
- Misses        230      238       +8     

Flag	Coverage Δ
integration	94.80% <100.00%> (-0.20%)	⬇️

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