Fix MimeKitLite NuGet include (#989)

* Fix 500

* MimeKiteLite : fix NuGet include

* .

examples/WireMock.Net.Console.NET7.UsingNuGet/Program.cs

@@ -0,0 +1,34 @@
+using System.Net;
+using System.Text;
+using FluentAssertions;
+using WireMock.Logging;
+using WireMock.RequestBuilders;
+using WireMock.ResponseBuilders;
+using WireMock.Server;
+using WireMock.Settings;
+
+namespace WireMock.Net.Console.NET7.UsingNuGet;
+
+internal class Program
+{
+    private static async Task Main(string[] args)
+    {
+        var server = WireMockServer.Start(new WireMockServerSettings
+        {
+            Logger = new WireMockConsoleLogger(),
+        });
+
+        server.Given(Request.Create().UsingPost().WithPath("/some/endpoint"))
+            .RespondWith(Response.Create().WithStatusCode(HttpStatusCode.Created));
+
+        var httpClient = new HttpClient { BaseAddress = new Uri(server.Url!) };
+        var requestUri = new Uri(httpClient.BaseAddress!, "some/endpoint");
+        var content = new StringContent(string.Empty, Encoding.UTF8, "application/json");
+
+        // Act
+        var actual = await httpClient.PostAsync(requestUri, content);
+
+        // Assert
+        actual.StatusCode.Should().Be(HttpStatusCode.Created);
+    }
+}