Rundeck's Key Storage converter plugin mechanism's encryption layer not working in 4.2.0, 4.2.1, 4.3.0

Impact The Key Storage converter plugin mechanism was not enabled correctly in Rundeck 4.2.0 and 4.2.1, resulting in use of the encryption layer for Key Storage possibly not working. Any credentials created or overwritten using Rundeck 4.2.0 or 4.2.1 might result in them being written in plaintex...