官网示例中，单独cacheKey缓存会失效

https://ahooks.js.org/zh-CN/hooks/use-request/cache
https://ahooks.js.org/~demos/cache-cachekey/

这是符合预期的吗？
必须要配置staleTime=-1才可以么

Start by reading the linked use-request cache documentation and reproducing the behavior in the cache-cachekey demo. Compare the result with and without staleTime=-1, then establish whether the example matches the intended cacheKey behavior; done means the behavior is clarified and the documentation or demo is corrected if needed.

Written by the indexing model from the issue text.