chore: remove object spead (#8514)

src/datetime-picker/DatetimePicker.tsx

@@ -1,5 +1,5 @@
 import { ref, defineComponent } from 'vue';
-import { pick, createNamespace, ComponentInstance } from '../utils';
+import { pick, createNamespace, ComponentInstance, extend } from '../utils';
 import { useExpose } from '../composables/use-expose';
 import TimePicker from './TimePicker';
 import DatePicker from './DatePicker';
@@ -12,11 +12,9 @@ const datePickerProps = Object.keys(DatePicker.props);
 export default defineComponent({
   name,
 
-  props: {
-    ...TimePicker.props,
-    ...DatePicker.props,
+  props: extend({}, TimePicker.props, DatePicker.props, {
     modelValue: [String, Date],
-  },
+  }),
 
   setup(props, { attrs, slots }) {
     const root = ref<ComponentInstance>();
@@ -38,7 +36,8 @@ export default defineComponent({
           v-slots={slots}
           ref={root}
           class={bem()}
-          {...{ ...inheritProps, ...attrs }}
+          {...inheritProps}
+          {...attrs}
         />
       );
     };