Cancelled requests are logged as errors

[gao-artur]

This is a continuation of the issue #2466. The cancelled requests should be reported as info instead of error. It was fixed in one place, but there is another that reports an error because it doesn't handle the IOException:

catch (Exception ex) when (ex is not OperationCanceledException)
{
    // Don't write error when user cancels read
    GrpcServerLog.ErrorReadingMessage(logger, ex);
    throw;
}

What version of gRPC and what language are you using?

v2.67.0