chore(deps): update rust crate async-openai to 0.15.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
async-openai	dependencies	minor	0.14.3 -> 0.15.0

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Release Notes

64bit/async-openai (async-openai)

v0.15.0: v0.15.0

Compare Source

New

• added : Use secrecy crate to store api_key : Secret<String> in configs #​114 by @​ironman5366
• added: Derive Copy for enums: ImageSize, ResponseFormat, TextModerationModel, Role, and AudioResponseFormat #​117 by @​m1guelpf
• added: Expose config getter in Client #​123 by @​Czechh
• updated: Enum type for finish_reason to match latest spec for chat completions API #​111 by @​retrage
• updated: ChatCompletionFunctionCall enum for better DX #​118 by @​m1guelpf

Updates from latest upstream spec 2.0.0

Chat & Completion:

• use enums FinishReason & CompletionFinishReason for finish_reason instead of String
• Rename struct Usage to CompletionUsage

Embeddings:

• Add field encoding_format in CreateEmbeddingRequest

Files:

• Update status_detail field type in OpenAIFile from object to String

Images:

• Rename ImageData to Image to match spec
• Rename ImageResponse to ImagesResponse to match spec

Moderations:

• Add new fields in moderation request and response types.

Fine Tuning

• Add new Fine Tuning APIs

Fine Tunes & Edit

• Mark Edit and FineTunes to be deprecated

Doc comments

• Update doc comments to match latest spec

Thank you

Thank you to the contributors (@​m1guelpf , @​Czechh ) and first time (@​ironman5366 , @​retrage ) contributors! 🎉

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