fix: statistic ts type import path (#1234)

Author: zkwolf

types/ant-design-vue.d.ts

@@ -46,7 +46,7 @@ import { Select } from './select/select';
 import { Skeleton } from './skeleton';
 import { Slider } from './slider';
 import { Spin } from './spin';
-import { Statistic } from './statistic';
+import { Statistic } from './statistic/statistic';
 import { Steps } from './steps/steps';
 import { Switch } from './switch';
 import { Table } from './table/table';