fix: no ConfigProvider's TypeScript definition (#1143)

types/ant-design-vue.d.ts

@@ -20,6 +20,7 @@ import { Carousel } from './carousel';
 import { Cascader } from './cascader';
 import { Checkbox } from './checkbox/checkbox';
 import { Col } from './grid/col';
+import { ConfigProvider } from './config-provider';
 import { DatePicker } from './date-picker/date-picker';
 import { Divider } from './divider';
 import { Drawer } from './drawer';
@@ -86,6 +87,7 @@ export {
   Cascader,
   Checkbox,
   Col,
+  ConfigProvider,
   DatePicker,
   Divider,
   Dropdown,

types/config-provider.d.ts

@@ -0,0 +1,5 @@
+import { AntdComponent } from './component';
+
+export declare class ConfigProvider extends AntdComponent {
+  getPopupContainer?: (triggerNode: HTMLElement) => HTMLElement;
+}