fix(date-picker): add props(mode) value -- decade (#3514)

Co-authored-by: 李艺珅 <l>

components/date-picker/props.ts

@@ -67,7 +67,7 @@ export const DatePickerProps = {
   showTime: withUndefined(PropTypes.oneOfType([PropTypes.object, PropTypes.looseBool])),
   open: PropTypes.looseBool,
   disabledTime: PropTypes.func,
-  mode: PropTypes.oneOf(tuple('time', 'date', 'month', 'year')),
+  mode: PropTypes.oneOf(tuple('time', 'date', 'month', 'year', 'decade')),
   onOpenChange: PropTypes.func,
   onPanelChange: PropTypes.func,
   onOk: PropTypes.func,