fix(transport): store expect errorDetails as serializable string - #3344

'IWebHost' is obsolete: 'IWebHost is obsolete. Use IHost instead. For more information, visit https://aka.ms/aspnet/deprecate/008.' (https://aka.ms/aspnet/deprecate/008)

'IWebHost' is obsolete: 'IWebHost is obsolete. Use IHost instead. For more information, visit https://aka.ms/aspnet/deprecate/008.' (https://aka.ms/aspnet/deprecate/008)

'IWebHostBuilder.Build()' is obsolete: 'IWebHost is obsolete. Use IHost instead. For more information, visit https://aka.ms/aspnet/deprecate/008.' (https://aka.ms/aspnet/deprecate/008)

'X509Certificate2.X509Certificate2(string, string?)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'WebHostBuilder' is obsolete: 'WebHostBuilder is deprecated in favor of HostBuilder and WebApplicationBuilder. For more information, visit https://aka.ms/aspnet/deprecate/004.' (https://aka.ms/aspnet/deprecate/004)

'IWebHostBuilder.Build()' is obsolete: 'IWebHost is obsolete. Use IHost instead. For more information, visit https://aka.ms/aspnet/deprecate/008.' (https://aka.ms/aspnet/deprecate/008)

'WebHostBuilder' is obsolete: 'WebHostBuilder is deprecated in favor of HostBuilder and WebApplicationBuilder. For more information, visit https://aka.ms/aspnet/deprecate/004.' (https://aka.ms/aspnet/deprecate/004)

'X509Certificate2.X509Certificate2(byte[])' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'IWebHost' is obsolete: 'IWebHost is obsolete. Use IHost instead. For more information, visit https://aka.ms/aspnet/deprecate/008.' (https://aka.ms/aspnet/deprecate/008)