Jepsen: Orkes Conductor 5.3.2

Orkes Conductor, a workflow orchestration platform, was tested in versions 5.3.2 through 5.5.0-rc2 and found to have three serious safety issues that caused workflows to be abandoned, forgotten, or incorrectly marked as completed despite tasks never running, along with several minor issues related to task execution and errors. Orkes released version 5.5.6 addressing all critical safety problems and reducing concurrent execution issues, while two remaining startWorkflow errors remain under investigation. The research was funded by Orkes Inc. and conducted according to Jepsen's ethics standards.