Can't pass isCritical prop to the Run Command Step

I wanted to make one of the steps not critical so the whole Runbook isn't failing if it fails, but I couldn't pass the prop.

Start by locating the Run Command Step implementation and its public props, then trace how the isCritical value is handled when a runbook is generated. Done means callers can pass isCritical to a Run Command Step and the resulting runbook respects that setting; add or update coverage if the project has tests for this step.

Written by the indexing model from the issue text.