AbstractRuntimeOnlyHandler should not add its step on a profile=* resource

The child resources of /profile=* do not have a runtime behind them, so AbstractRuntimeOnlyStepHandler should not add its Stage.RUNTIME step if the target resources is in that tree.

This will make it possible to use this class if as part of WFCORE-389 we lift the (currently unenforced) restriction on adding runtime-only ops to profile resources in order to have the DC roll them out to relevant servers. It's particular important in the context of the related WFCORE-2815, which would result in the current AbstractRuntimeOnlyStepHandler impl failing if used on a profile resource, since the step it adds would be rejected.