chore: 🐝 Update SDK - Generate 0.20.4

[github-actions]

SDK update

Versioning

Version Bump Type: [patch] - 🤖 (automated)

Tip

If updates to your OpenAPI document introduce breaking changes, be sure to update the info.version field to trigger the correct version bump.
Speakeasy supports manual control of SDK versioning through multiple methods.

OpenAPI Change Summary

└─┬Info
  └─┬Extensions
    ├──[🔀] x-source-commit-sha (5:24)
    └──[🔀] x-open-api-commit-sha (6:26)

Document Element	Total Changes	Breaking Changes
info	2	0

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Linting Report

0 errors, 28 warnings, 6 hints

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TYPESCRIPT CHANGELOG

retries: 2.83.2 - 2026-09-01

🐛 Bug Fixes

• support retry strategy none and operation-level disabled retry overrides (commit by @ThomasRooney)

serverEvents: 0.2.4 - 2026-09-02

🐛 Bug Fixes

• keep narrowed SSE overload return types when error responses are documented (commit by @AshGodfrey)

Based on Speakeasy CLI 1.796.4

Last updated by Speakeasy workflow

[chris-freeman-glean]

Approved for merge (Chris via CoS). Tip 0591dab.