Patching status triggers new reconciliation loop

[chrisdoherty4]

Currently, several of our controllers (originally identified in the Task controller) don't filter status field updates resulting in status patches triggering additional reconciliation requests. This behavior is actually relied upon by a task controller but feels very incidental as opposed to intentional.

We should refactor to filter for status field updates and explicitly issue a requeue if that's the desired behavior. This will create code that's much clearer in its intent.

The GenerationChangedPredicate can be applied to the For(...) method when registering with the controller manager. This ensures we associate the predicate with a single type in the event more types are listened to such as the job controller.