fix: Drop pricing_infos from CreateActorRequest and clarify apify_margin_percentage docs

[apify-service-account]

• Regenerates the Pydantic models, TypedDicts, and literal aliases from the published OpenAPI specification, and records its version in pyproject.toml.
• Specification version: v2-2026-08-24T085852Z - unchanged, which doesn't rule out a specification change: the published stamp can lag its content by a deploy. Only the diff tells.

Important

Retitle this pull request to fix: or feat: when the diff is user-facing, so that it lands in the changelog and triggers a release - chore: does neither.

Generated by the Regenerate models workflow.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.96%. Comparing base (28efd13) to head (1724a47).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1031   +/-   ##
=======================================
  Coverage   94.96%   94.96%           
=======================================
  Files          58       58           
  Lines        5439     5439           
=======================================
  Hits         5165     5165           
  Misses        274      274           

Flag	Coverage Δ
integration	91.76% <100.00%> (ø)
unit	85.82% <100.00%> (ø)

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