Disable project template tests for .NET 11

Author: lbussell

tests/Microsoft.DotNet.Docker.Tests/TestScenarios/ProjectTemplateTestScenario.cs

@@ -117,6 +117,13 @@ protected string Build(string stageTarget, string[]? customBuildArgs)
 
     public async Task ExecuteAsync()
     {
+        if (ImageData.Version.Major == 11)
+        {
+            OutputHelper.WriteLine("Skipping project template test scenario for .NET 11 since project templates are"
+                + " not updated yet. Re-enable when https://github.com/dotnet/sdk/issues/50295 is resolved.");
+            return;
+        }
+
         List<string> tags = [];
 
         try