docs(tree): add onDoubleClick API documentation (ant-design#56911)

* docs(tree): add onDoubleClick API documentation

* update

---------

Co-authored-by: thinkasany <480968828@qq.com>

Author: xliez

components/tree/index.en-US.md

@@ -79,6 +79,7 @@ Common props ref：[Common props](/docs/react/common-props)
 | treeData | The treeNodes data Array, if set it then you need not to construct children TreeNode. (key should be unique across the whole array) | array<{ key, title, children, \[disabled, selectable] }> | - |  |
 | virtual | Disable virtual scroll when set to false | boolean | true | 4.1.0 |
 | onCheck | Callback function for when the onCheck event occurs | function(checkedKeys, e:{checked: boolean, checkedNodes, node, event, halfCheckedKeys}) | - |  |
+| onDoubleClick | Callback function for when the user double clicks a treeNode | function(event, node) | - |  |
 | onDragEnd | Callback function for when the onDragEnd event occurs | function({event, node}) | - |  |
 | onDragEnter | Callback function for when the onDragEnter event occurs | function({event, node, expandedKeys}) | - |  |
 | onDragLeave | Callback function for when the onDragLeave event occurs | function({event, node}) | - |  |

components/tree/index.zh-CN.md

@@ -78,6 +78,7 @@ demo:
 | treeData | treeNodes 数据，如果设置则不需要手动构造 TreeNode 节点（key 在整个树范围内唯一） | array<{key, title, children, \[disabled, selectable]}> | - |  |
 | virtual | 设置 false 时关闭虚拟滚动 | boolean | true | 4.1.0 |
 | onCheck | 点击复选框触发 | function(checkedKeys, e:{checked: boolean, checkedNodes, node, event, halfCheckedKeys}) | - |  |
+| onDoubleClick | 双击树节点触发 | function(event, node) | - |  |
 | onDragEnd | dragend 触发时调用 | function({event, node}) | - |  |
 | onDragEnter | dragenter 触发时调用 | function({event, node, expandedKeys}) | - |  |
 | onDragLeave | dragleave 触发时调用 | function({event, node}) | - |  |