muster release v5.7.13

Fixed

• The workflow executor’s debug logging no longer prints workflow arguments, resolved step arguments, step results, template results or the final result. Those are user data – a token passed as a workflow input, a credential returned by a step – and were dumped verbatim with %+v at debug level. The lines now carry the workflow name, step id, argument and result key names, value shapes and sizes only. A behavioral scenario (workflow-args-never-logged) runs a secret through a workflow and asserts it never reaches muster serve’s output.