Consume ValueTask with GetAwaiter().GetResult() (#29710)

* Update Http2Stream.cs

* Update ComponentState.cs

Author: Kahbazi

src/Components/Components/src/Rendering/ComponentState.cs

@@ -236,6 +236,9 @@ public Task DisposeInBatchAsync(RenderBatchBuilder batchBuilder)
                 var result = ((IAsyncDisposable)Component).DisposeAsync();
                 if (result.IsCompletedSuccessfully)
                 {
+                    // If it's a IValueTaskSource backed ValueTask,
+                    // inform it its result has been read so it can reset
+                    result.GetAwaiter().GetResult();
                     return Task.CompletedTask;
                 }
                 else

src/Servers/Kestrel/Core/src/Internal/Http2/Http2Stream.cs

@@ -450,6 +450,10 @@ public Task OnDataAsync(Http2Frame dataFrame, in ReadOnlySequence<byte> payload)
                             // It shouldn't be possible for the RequestBodyPipe to fill up an return an incomplete task if
                             // _inputFlowControl.Advance() didn't throw.
                             Debug.Assert(flushTask.IsCompletedSuccessfully);
+                            
+                            // If it's a IValueTaskSource backed ValueTask,
+                            // inform it its result has been read so it can reset
+                            flushTask.GetAwaiter().GetResult();
                         }
                     }
                 }