Integration gh workflow for test install and uninstall

[kornys]

1. Fix for Apicurio operator namespace watch cannot be "*" but has to be empty
2. Added workflow with Minikube (+ ingress) for install/check/uninstall
3. Added workglow with Kind (+ingress) for install/check/uninstall

[tomncooper]

A few nits and I wonder if it would be better to have the longer validation and debugging steps be scripts so that they could be parametrised in future when we add additional overlays with different component mixes.

[kornys]

@tomncooper I have implemented your suggestions.

[tomncooper]

LGTM, I think we might need a more generic way to work out what is in each overlay directly from the kustomization files, but that can be added later.

[tomncooper]

It is nice to have this separated out, but there are other elements (like the install and uninstall scripts) that need the overlay details. So I wonder if it would be possible to do this programmatically by looking at the kustomizations.

However, that is premature optimization and once we merge this we can look at other options.