chore: remove object spead (#8514)

src/datetime-picker/utils.ts

@@ -1,4 +1,5 @@
 import { PropType } from 'vue';
+import { extend } from '../utils';
 import { pickerProps } from '../picker/Picker';
 
 export type ColumnType = 'year' | 'month' | 'day' | 'hour' | 'minute';
@@ -11,15 +12,14 @@ export type DatetimePickerType =
   | 'month-day'
   | 'year-month';
 
-export const sharedProps = {
-  ...pickerProps,
+export const sharedProps = extend({}, pickerProps, {
   filter: Function as PropType<(type: string, values: string[]) => string[]>,
   columnsOrder: Array as PropType<ColumnType[]>,
   formatter: {
     type: Function as PropType<(type: string, value: string) => string>,
     default: (type: string, value: string) => value,
   },
-};
+});
 
 export const pickerKeys = Object.keys(pickerProps) as Array<
   keyof typeof pickerProps