Fix async unit test received call

Author: shana

src/UnitTests/GitHub.App/ViewModels/RepositoryCloneViewModelTests.cs

@@ -358,8 +358,7 @@ public async Task UpdatesMetricsWhenRepositoryCloned()
 
             vm.SelectedRepository = Substitute.For<IRepositoryModel>();
             await vm.CloneCommand.ExecuteAsync();
-
-            usageTracker.Received().IncrementCloneCount().Forget();
+            Received.InOrder(async () => await usageTracker.IncrementCloneCount());
         }
     }
 }