Update azure-typespec/http-client-csharp-mgmt version to prerelease 1.0.0-alpha.20251127.2#54207

live1206 merged 2 commits intoAzure:mainAzure/azure-sdk-for-net:mainfrom

azure-sdk:validate-typespec-20251127.2-azure-typespec/http-client-csharp-mgmtazure-sdk/azure-sdk-for-net:validate-typespec-20251127.2-azure-typespec/http-client-csharp-mgmtCopy head branch name to clipboard