fix(upload): inner anchor element may show focus-visible outline style

CHANGELOG.en-US.md

@@ -15,6 +15,7 @@
 - Fix `n-tree` throws error on async expanding data with `:expand-on-click="true"`, closes [#3089](https://github.com/TuSimple/naive-ui/issues/3089).
 - Fix `n-slider`'s tooltip has no enter transition when it's triggered by keyboard.
 - Fix `n-slider`'s mark line wrap isn't correct when it appears at right-most position.
+- Fix `n-upload`'s inner anchor element may show focus-visible outline style.
 
 ### Feats
 

CHANGELOG.zh-CN.md

@@ -15,6 +15,7 @@
 - 修复 `n-tree` 在设定 `expand-on-click` 之后异步展开报错，关闭 [#3089](https://github.com/TuSimple/naive-ui/issues/3089)
 - 修复 `n-slider` 使用键盘聚焦触发 toolip 的时候没有动画
 - 修复 `n-slider` 在 mark 出现在最右侧的时候换行不正常
+- 修复 `n-upload` 内部的链接会出现原生 focus-visible 的 outline 样式
 
 ### Feats
 

src/upload/src/styles/index.cssr.ts

@@ -73,6 +73,7 @@ export default c([
     opacity: 1;
     transition: opacity .3s var(--n-bezier);
   `, [
+    c('a, img', 'outline: none;'),
     cM('disabled', `
       opacity: var(--n-item-disabled-opacity);
       cursor: not-allowed;