Make webhook owner references not a controller (controller=false) #3255
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Part of knative/serving#15483
We setup namespace as the owner of the webhooks in order to clean up
instances where a user deletes the namespace.
This has issues with ArgoCD which we've included a workaround.
But an upcoming ArgoCD PR will handle owner references properly if
it is not a 'controller=true' reference.
This PR changes the owner reference to not be a controlling one.
We still block owner deletion because that was the original intent
of adding the owner reference.
With the incoming ArgoCD change then we'll want controller=false
to be used (argoproj/gitops-engine#501, argoproj/gitops-engine#771)