chore: add cxk0831 to codeoweners

.github/CODEOWNERS

@@ -6,4 +6,4 @@
 # @youngjuning will be requested for review when someone opens a pull request.
 *       @youngjuning
 
-/vscode.d.ts       @youngjuning @gepingli @Saber2pr @Imchenlong @pan463859 @Tecvan-fe @sherry-zxy @liuqh0609
+/vscode.d.ts       @youngjuning @gepingli @Saber2pr @Imchenlong @pan463859 @Tecvan-fe @sherry-zxy @liuqh0609 @cxk0831

README.md

@@ -31,7 +31,7 @@ API 列表使用 Typedoc 从 [vscode.d.ts](https://github.com/youngjuning/vscode
 
 翻译负责人是按照 vscode api 的命名空间认领的，如果有兴趣认领请添加管理员微信（`yang_jun_ning`）申请成为内部译者。
 
-- [ ] authentication
+- [x] authentication    @cxk0831
 - [x] commands          @Imchenlong
 - [x] comments          @youngjuning
 - [ ] debug

vscode.d.ts

@@ -13787,6 +13787,7 @@ export interface AuthenticationProvider {
 
 /**
  * Namespace for authentication.
+ * @maintainer {@link https://github.com/cxk0831 @cxk0831}
  */
 export namespace authentication {
 	/**