feat(deps): Update openai to v6.49.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
openai	6.48.0 → 6.49.0

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Release Notes

openai/openai-node (openai)

v6.49.0

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Full Changelog: v6.48.0...v6.49.0

Features

• api: accept None for prompt_cache_key/safety_identifier (c54a7f3)
• api: add support for spend_limit admin apis (e8238b0)
• helpers: add standard schema support (#​1997) (4ced1a8)
• helpers: add zod realtime function helper (#​1996) (ee59911)
• stlc: configurable CI runner and private-production-repo support in workflow templates (967a66b)
• zod: support schema definitions (#​1993) (eb04567)

Bug Fixes

• address code scanning findings (#​2007) (2706888)
• address remaining Dependabot alerts (#​2005) (6ab3428)
• azure: normalize endpoint trailing slashes (#​1995) (39a15b4)
• ci: restore explicit TypeScript SDK runner selection (fe79401)
• runTools: sanitize replayed messages (#​1990) (a60cc25)
• stream: handle audio completion markers (#​1991) (bd86817)
• zod: escape schema definition refs before strict validation (bff2b10)
• zod: infer parsed tool callback arguments (#​1992) (83cdb79)
• zod: preserve schema types while escaping refs (cb7e195)

Chores

• exclude Brewfile from language detection (#​2006) (9bec333)
• refresh more ecosystem test dependencies (#​2003) (3cafa55)

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