fix(Modal): repair cancel event missing (#1545)

src/components/Modal/src/components/Modal.tsx

@@ -10,7 +10,7 @@ export default defineComponent({
   inheritAttrs: false,
   props: basicProps,
   emits: ['cancel'],
-  setup(props, { slots }) {
+  setup(props, { slots, emit }) {
     const { visible, draggable, destroyOnClose } = toRefs(props);
     const attrs = useAttrs();
     useModalDragMove({
@@ -19,8 +19,12 @@ export default defineComponent({
       draggable,
     });
 
+    const onCancel = (e: Event) => {
+      emit('cancel', e);
+    };
+
     return () => {
-      const propsData = { ...unref(attrs), ...props } as Recordable;
+      const propsData = { ...unref(attrs), ...props, onCancel } as Recordable;
       return <Modal {...propsData}>{extendSlots(slots)}</Modal>;
     };
   },