OpenAI_2.0.0-beta.10

What's Changed

• Readme: add Structured Outputs information by @trrwilson in https://github.com/openai/openai-dotnet/pull/181
• Preparation for small 2.0.0-beta.10 release (code updates) by @trrwilson in https://github.com/openai/openai-dotnet/pull/186
• 2.0.0-beta.10: release preparation part 2 (changelog, csproj) by @trrwilson in https://github.com/openai/openai-dotnet/pull/189

Full Changelog: https://github.com/openai/openai-dotnet/compare/OpenAI_2.0.0-beta.9...OpenAI_2.0.0-beta.10