fix(图表): 修复热力图颜色切换失效

core/core-frontend/src/views/chart/components/js/panel/charts/g2/table/t-heatmap.ts

@@ -258,6 +258,7 @@ export class TableG2Chart extends G2ChartView {
       const quotaLegendOption = {
         scale: {
           color: {
+            type: 'linear',
             interpolate: () => {
               return c => colors[Math.floor(c * (colors.length - 1))]
             }