Check clear cache behavior #4782
Description
Clear cache has been updated SDK side, and there is maybe some closing to do on our side before calling the clearCache API.
Maybe in RustMatrixClient.clearCache() we could ensure that the sync service is stopped. See the doc here https://github.com/matrix-org/matrix-rust-sdk/pull/5096/files#diff-f4219660dd4687809f8c9f0a5f4f17b5e782ea7e28f5b6e40cccbb67c38e1308R1419