fix(视图): 修复 AntV 组合图类别轴为日期时散点图显示异常

extensions/dataease-extensions-view/view-chartmix/view-chartmix-frontend/src/views/antv/chartmix/index.vue

@@ -757,6 +757,7 @@ export default {
           meta: {
             key: {
               sync: true,
+              type: 'cat'
             },
           },
           color: color,
@@ -815,6 +816,7 @@ export default {
           meta: {
             key: {
               sync: true,
+              type: 'cat'
             },
           },
           color: color,