Due to CVE-2022-4886 the default pathType for an ingress should be
either "Exact" or "Prefix". This allows for more strict path validation by
the admission controller. This PS changes the default pathType to Prefix.
This value can be overridden.
In a separate PS I will add the pathType parameter to the ingressOpts
for all helm charts that create an ingress.
See:
https://github.com/kubernetes/ingress-nginx/issues/10570
Change-Id: I8f1df594f0c86f2de6cdd7cf2ee56637bd508565
5b72041fd9