[ISSUE #11887] add some tips for upgrade

[cold-l]

What is the purpose of the change

add some tips when the user upgrades Nacos

Brief changelog

XX

Verifying this change

XXXX

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[KomachiSion]

@cold-l 麻烦在文档中添加一下相应说明：

https://nacos.io/docs/next/manual/admin/auth/

https://github.com/nacos-group/nacos-group.github.io/blob/develop-astro-nacos/src/content/docs/next/zh-cn/manual/admin/auth.mdx

[cold-l]

@cold-l 麻烦在文档中添加一下相应说明：

https://nacos.io/docs/next/manual/admin/auth/

https://github.com/nacos-group/nacos-group.github.io/blob/develop-astro-nacos/src/content/docs/next/zh-cn/manual/admin/auth.mdx

done ,
这个是 docs的 pr： nacos-group/nacos-group.github.io#748