🐞 fix(Tree): 调整checkedKeys属性的类型 (#2562)

src/components/Tree/src/types/tree.ts

@@ -100,7 +100,7 @@ export const treeProps = buildProps({
   },
 
   checkedKeys: {
-    type: Array as PropType<CheckKeys>,
+    type: [Array, Object] as PropType<CheckKeys>,
     default: () => [],
   },