Fix public API test

Author: darrelmiller

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -1,4 +1,4 @@
-[assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute(@"Microsoft.OpenApi.Readers.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100957cb48387b2a5f54f5ce39255f18f26d32a39990db27cf48737afc6bc62759ba996b8a2bfb675d4e39f3d06ecb55a178b1b4031dcb2a767e29977d88cce864a0d16bfc1b3bebb0edf9fe285f10fffc0a85f93d664fa05af07faa3aad2e545182dbf787e3fd32b56aca95df1a3c4e75dec164a3f1a4c653d971b01ffc39eb3c4")]
+[assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute(@"Microsoft.OpenApi.Readers.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100957cb48387b2a5f54f5ce39255f18f26d32a39990db27cf48737afc6bc62759ba996b8a2bfb675d4e39f3d06ecb55a178b1b4031dcb2a767e29977d88cce864a0d16bfc1b3bebb0edf9fe285f10fffc0a85f93d664fa05af07faa3aad2e545182dbf787e3fd32b56aca95df1a3c4e75dec164a3f1a4c653d971b01ffc39eb3c4")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute(@"Microsoft.OpenApi.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100957cb48387b2a5f54f5ce39255f18f26d32a39990db27cf48737afc6bc62759ba996b8a2bfb675d4e39f3d06ecb55a178b1b4031dcb2a767e29977d88cce864a0d16bfc1b3bebb0edf9fe285f10fffc0a85f93d664fa05af07faa3aad2e545182dbf787e3fd32b56aca95df1a3c4e75dec164a3f1a4c653d971b01ffc39eb3c4")]
 [assembly: System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.6", FrameworkDisplayName=".NET Framework 4.6")]
 namespace Microsoft.OpenApi.Any
@@ -352,6 +352,7 @@ namespace Microsoft.OpenApi.Models
         public const string BasePath = "basePath";
         public const string Basic = "basic";
         public const string BearerFormat = "bearerFormat";
+        public const string BodyName = "x-bodyName";
         public const string Callbacks = "callbacks";
         public const string ClientCredentials = "clientCredentials";
         public const string Components = "components";