Dear community, I created a PIP to use `StateStoreProvider` instead of Apache BookKeeper's `StorageAdminClient` in Pulsar Functions' putstate and querystate endpoints to manage functions' state store: https://github.com/apache/pulsar/pull/21438
It will decouple the function's state store from BookKeeper and enable it to use other state store backends. Any feedback and suggestions are welcome. Sincerely Pengcheng Jiang
