Determine how to handle ambiguous Child health conditions to determine if reconciliation is still happening (PPND)

[juliev0]

Describe the bug
PipelineRollout, ISBServiceRollout, and NumaflowController Rollout need to know whether the child resources of the Pipeline and ISBSvc, and whether the Numaflow Controller Deployment are done Progressing so they can safely unpause pipelines.

Pipeline and ISBsvc have Conditions which can indicate if their children are progressing: Condition.Reason=Progressing.

However, there are certain cases in which the Condition is set to false but it was ambiguous as to whether it was a case of "Progressing" or just general failure, so the Condition was not marked as "Progressing", namely I see this one:

{Type:DaemonServiceHealthy Status:False Reason:GetDaemonServiceFailed Message:Deployment not found, might be still under creation}

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[juliev0]

@chandankumar4 would you mind checking if there are other cases where we are saying some other reason than "Progressing", but it could be a progressing case?

[juliev0]

Since some Conditions will inevitably be ambiguous, I think the way I will deal with it instead is this: once we are setting inProgressStrategy to "PPND", then I will concern myself with all unhealthy Child Conditions and not worry about their particular "Reason". I will make sure we're pausing if there's still unhealthiness during the process of PPND and not outside of it.