1.2.1 merge to master

[nkorange]

Please do not create a Pull Request without creating an issue first.

What is the purpose of the change

Hotfix of 1.2.0

Brief changelog

https://github.com/alibaba/nacos/releases/tag/1.2.1

Verifying this change

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[CLAassistant]

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9 out of 10 committers have signed the CLA.

✅ KeRan213539
✅ chuntaojun
✅ nkorange
✅ lkxiaolou
✅ xuechaos
✅ theonefx
✅ Maijh97
✅ zhenxianyimeng
✅ loadchange
❌ dependabot[bot]
_{You have signed the CLA already but the status is still pending? Let us recheck it.}