What's Changed

• make linter happy by @sashabaranov in https://github.com/sashabaranov/go-openai/pull/701
• [BREAKING_CHANGES] Fix update message payload by @qhenkart in https://github.com/sashabaranov/go-openai/pull/699
• feat: add GPT4Turbo and GPT4Turbo20240409 by @liushuangls in https://github.com/sashabaranov/go-openai/pull/703

Full Changelog: https://github.com/sashabaranov/go-openai/compare/v1.20.5...v1.21.0