Fix vulnerability in NuGet dependencies (#508)

* .

* .

* test

* Microsoft.AspNetCore.Server.IIS

examples/WireMock.Net.Console.Proxy.NETCoreApp2/Program.cs

@@ -28,7 +28,7 @@ namespace WireMock.Net.Console.Proxy.NETCoreApp2
                     //ClientX509Certificate2ThumbprintOrSubjectName = "www.yourclientcertname.com OR yourcertificatethumbprint (only if the service you're proxying to requires it)",
                     SaveMapping = true,
                     SaveMappingToFile = false,
-                    BlackListedHeaders = new[] { "dnt", "Content-Length" }
+                    ExcludedHeaders = new[] { "dnt", "Content-Length" }
                 }
             });