GaugeGenerator.BuildSolidGauge label does not display 0 values

[Schoof-T]

Describe the bug
After upgrading to the newest prerelease version, 0 values are no longer displayed on gauges.

To Reproduce
Steps to reproduce the behavior:

1. Generate a gauge with a 0 value

                var pieChart = GaugeGenerator.BuildSolidGauge(new GaugeItem(0, series =>
                {
                    series.Fill = new SolidColorPaint(new SkiaSharp.SKColor(186, 12, 47));
                    series.DataLabelsSize = 50;
                    series.DataLabelsPosition = LiveChartsCore.Measure.PolarLabelsPosition.ChartCenter;
                    series.InnerRadius = 175;
                }),
                new GaugeItem(GaugeItem.Background, series =>
                {
                    series.InnerRadius = 175;
                    series.Fill = new SolidColorPaint(new SkiaSharp.SKColor(243, 243, 243));
                }));

                var stockValueGaugeChart = new SKPieChart
                {
                    MaxValue = 100,
                    Series = pieChart,
                    InitialRotation = -180,
                    MaxAngle = 180
                };

                stockValueGaugeChart.SaveImage("D:\test.png");

2. Check the generated gauge
   

Expected behavior
The gauge should show '0', like in the previous version. (The % is added through a formatter)

Desktop (please complete the following information):

• OS: Windows
• Version 2.0.0-beta.920