fix(components): [tree-v2] fix issue in tree-v2 for setCheckedKeys invalid (#15997)

* fix(components): fix #15992

closed #15992

* fix(components): [tree-v2]setCheckedKeys ineffective

closed #15992

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Co-authored-by: 黄嘉伟1 <huangjw1@xmmy.com>

packages/components/tree-v2/src/composables/useCheck.ts

@@ -179,7 +179,9 @@ export function useCheck(props: TreeProps, tree: Ref<Tree | undefined>) {
   function setCheckedKeys(keys: TreeKey[]) {
     checkedKeys.value.clear()
     indeterminateKeys.value.clear()
-    _setCheckedKeys(keys)
+    nextTick(() => {
+      _setCheckedKeys(keys)
+    })
   }
 
   function setChecked(key: TreeKey, isChecked: boolean) {