Update src/Microsoft.OpenApi.Readers/OpenApiYamlReader.cs

Co-authored-by: Vincent Biret <[email protected]>

Author: MaggieKimani1

src/Microsoft.OpenApi.Readers/OpenApiYamlReader.cs

@@ -33,7 +33,7 @@ public async Task<ReadResult> ReadAsync(Stream input,
             else 
             {
                 using var preparedStream = new MemoryStream();
-                await input.CopyToAsync(preparedStream, copyBufferSize, cancellationToken);
+                await input.CopyToAsync(preparedStream, copyBufferSize, cancellationToken).ConfigureAwait(false);
                 preparedStream.Position = 0;
                 return Read(preparedStream, settings);
             }