Update @typespec/http-client-csharp to 1.0.0-alpha.20251022.4#777

jorgerangel-msft merged 2 commits intomainopenai/openai-dotnet:mainfrom

typespec/update-http-client-csharp-1.0.0-alpha.20251022.4openai/openai-dotnet:typespec/update-http-client-csharp-1.0.0-alpha.20251022.4Copy head branch name to clipboard