tag fix

Author: SimaTian

test/Microsoft.NET.Build.Containers.IntegrationTests/EndToEndTests.cs

@@ -1400,7 +1400,7 @@ public async Task CheckErrorMessageWhenSourceRepositoryThrows()
         BuiltImage builtImage = imageBuilder.Build();
 
         // Load the image into the local registry
-        var sourceReference = new SourceImageReference(registry, "some_random_image", DockerRegistryManager.Net9PreviewImageTag);
+        var sourceReference = new SourceImageReference(registry, "some_random_image", DockerRegistryManager.Net9ImageTag);
         var destinationReference = new DestinationImageReference(registry, NewImageName(), new[] { rid });
         var sawMyException = false;
         try