[Bug] heatmap label position 设置无效

[webiamcome]

Version

all

Link to Minimal Reproduction

https://www.visactor.io/vchart/demo/heatmap-chart/basic-heatmap?version=1.11.0

Steps to Reproduce

1、复制如下代码至官网demo，修改 label position 值，看是否有效

const items = [
  'Asset Liability Ratio',
  'Asset Liability Ratio (Deducting Advance Payments)',
  'Debt-to-long Capital Ratio',
  'Long Term Asset Suitability Ratio',
  'Equity Multiplier',
  'Equity Ratio of Current Liability',
  'Interest Bearing Debt / Fully Invested Capital',
  'Current Liability / Total Liabilities',
  'Capital Fixation Ratio',
  'Expected Default Frequency'
];

const data = [];
for (let i = 0; i < items.length; i++) {
  for (let j = 0; j < items.length; j++) {
    data.push({
      var1: items[i],
      var2: items[j],
      value: 1
    });
  }
}

const spec = {
  type: 'common',
  padding: 12,
  data: [
    {
      id: 'data0',
      values: data
    }
  ],
  series: [
    {
      type: 'heatmap',
      regionId: 'region0',
      xField: 'var1',
      yField: 'var2',
      valueField: 'value',
      cell: {
        style: {
          fill: {
            field: 'value',
            scale: 'color'
          }
        }
      },
      label: {
        visible: true,
        position: 'inside-top'
      }
    }
  ],
  region: [
    {
      id: 'region0',
    }
  ],
  color: {
    type: 'linear',
    domain: [
      {
        dataId: 'data0',
        fields: ['value']
      }
    ],
    range: ['#feedde', '#fdbe85', '#fd8d3c', '#e6550d', '#a63603']
  },
  axes: [
    {
      visible: false,
      orient: 'bottom',
      type: 'band',
      grid: {
        visible: false
      },
      domainLine: {
        visible: false
      },
      label: {
        space: 10,
        style: {
          textAlign: 'left',
          textBaseline: 'middle',
          angle: 90,
          fontSize: 8
        }
      },
      bandPadding: 0,
      height: layoutRect => {
        // canvas height - region height - paddingTop - paddingBottom
        return layoutRect.height - 314;
      }
    },
    {
      visible: false,
      orient: 'left',
      type: 'band',
      grid: {
        visible: false
      },
      domainLine: {
        visible: false
      },
      label: {
        space: 10,
        style: {
          fontSize: 8
        }
      },
      bandPadding: 0
    }
  ],
  legends: {
    visible: true,
    orient: 'right',
    position: 'start',
    type: 'color',
    field: 'value'
  },
  title: {
    visible: true,
    text: `Correlation Coefficient`
  }
};

const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;

Current Behavior

1、修改 label position 值，heatmap label 没变化

Expected Behavior

1、期望能按预期显示，如 inside-top 是显示在内部上方 2、期望能新增 outside ，显示在外部

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response