fix invalid compatible-reset css dir in changelog (#8432)

CHANGELOG.en-US.md

@@ -62,7 +62,7 @@ Learn more in the [Ant Design 3.0 announcement post](https://medium.com/ant-desi
   Or use less
 
   ```less
-  @import '~antd/style/v2-compatible-reset.css';
+  @import '~antd/lib/style/v2-compatible-reset.css';
   ```
 
 - Since we changed default locale to en_US, LocalProvider is not required any more for English users.

CHANGELOG.zh-CN.md

@@ -62,7 +62,7 @@ timeline: true
   或者在 less 里引入
 
   ```less
-  @import '~antd/style/v2-compatible-reset.css';
+  @import '~antd/lib/style/v2-compatible-reset.css';
   ```
 
 - 由于默认语言改为英文，如果你需要显示中文，现在需要配置 `LocalProvider`。