GetBatchResponseById doesn't pass type name to throwErrors

[eric-millin]

You can see when using a debugger to step through this code

func TestGetResponseByIdFailedRequest(t *testing.T) {
	errorMapping := abstractions.ErrorMappings{
		"4XX": internal.CreateSampleErrorFromDiscriminatorValue,
		"5XX": internal.CreateSampleErrorFromDiscriminatorValue,
	}
	err := RegisterError("Userable", errorMapping)
	require.NoError(t, err)

	mockServer := makeMockRequest(200, getDummyJSON())
	defer mockServer.Close()

	mockPath := mockServer.URL + "/$batch"
	reqAdapter.SetBaseUrl(mockPath)

	reqInfo := getRequestInfo()
	batch := NewBatchRequest(reqAdapter)
	_, err = batch.AddBatchRequestStep(*reqInfo)
	require.NoError(t, err)

	resp, err := batch.Send(context.Background(), reqAdapter)
	require.NoError(t, err)
}

Change the following line: https://github.com/microsoftgraph/msgraph-sdk-go-core/blob/main/batch_requests.go#L269 to

		return res, throwErrors(item, reflect.TypeOf(new(T)).Elem().Name())

and you'll see that the error factories are returned.