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- ~~[OWNERS](https://github.com/kitex-contrib/xds/blob/main/OWNERS)~~ [ppzqh]
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What type of PR is this?
feat: support circuitbreak policy https://github.com/kitex-contrib/xds/issues/27
What this PR does / why we need it (en: English/zh: Chinese):
en: support circuitbreak policy zh: 支持动态配置熔断策略
Which issue(s) this PR fixes: