Needs approval from an approver in each of these files:
- ~~[OWNERS](https://github.com/halo-sigs/plugin-page-cache/blob/main/OWNERS)~~ [ruibaby]
Approvers can indicate their approval by writing `/approve` in a comment
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Waht this PR does?
优化缓存逻辑并在停用插件时清除缓存