v0.5.18

Updates flowctl to automatically encrypt all endpoint configurations whenever you run catalog publish|test or draft author. It will now use the same mechanism as our UI to encrypt any sensitive fields in the endpoint configs. Note that the local files will not be modified by this. Only the drafted specifications are modified. If you'd like to have your local endpoint config files encrypted, you do so by running pull-specs --overwrite after publishing, or draft develop --overwrite after running draft author.