1. Call `revalidateAccountPrekeys()` to make sure checks work properly
2. Call `publishNewPrekeys()` to make sure upload works properly.
3. Check Identity logs for ` Refreshing prekeys for user: ...`
4. Check if time (`last_prekey_publish_time`) is updated after successful upload.
Test error:
1. Delete user credentials (identity will fail to auth while refreshing keys)
2. Trigger cron job
3. check logs for `encountered error while trying to validate prekeys`