perf: add checkbox events declare

close #3440

Author: tangjinzhou

components/checkbox/Checkbox.tsx

@@ -27,7 +27,7 @@ export default defineComponent({
     onChange: PropTypes.func,
     'onUpdate:checked': PropTypes.func,
   },
-
+  emits: ['change', 'update:checked'],
   setup() {
     return {
       configProvider: inject('configProvider', defaultConfigProvider),

components/checkbox/Group.tsx

@@ -25,6 +25,7 @@ export default defineComponent({
     disabled: PropTypes.looseBool,
     onChange: PropTypes.func,
   },
+  emits: ['change', 'update:value'],
   setup() {
     return {
       configProvider: inject('configProvider', defaultConfigProvider),