controller-runtime: Cache doesn't start if it's config refers to types that are not installed

controller-runtime v0.16.0 fails starting the manager when the operator is using cache.Options with kinds identified ByObject that are not present on the specific cluster.

This could happen for instance trying to finetune upfront the cache also for monitoring kinds when the prometheous stack is not deployed or OKD/OCP specific kinds when on vanilla k8s.

Now the operator dies with something like:

failed to determine if *v1.ConsoleQuickStart is namespaced: failed to get restmapping: failed to find API group "console.openshift.io"","stacktrace":"github.com/kubevirt/hyperconverged-cluster-operator/cmd/cmdcommon.HcCmdHelper.ExitOnError
	/go/src/github.com/kubevirt/hyperconverged-cluster-operator/cmd/cmdcommon/cmdcommon.go:97
main.main
	/go/src/github.com/kubevirt/hyperconverged-cluster-operator/cmd/hyperconverged-cluster-operator/main.go:104
runtime.main
	/usr/local/go/src/runtime/proc.go:250

the same code was working with controller-runtime <= v0.15.0.

This is probably got probably changed with: https://github.com/kubernetes-sigs/controller-runtime/pull/2421 The error comes from https://github.com/kubernetes-sigs/controller-runtime/blob/c20ea143a236a34fb331e6c04820b75aac444e7d/pkg/cache/cache.go#L399-L405 that is supposed to use isNamespaced during cache initialization to ensure that byObject.Namespaces is not set for cluster-scope kind.

A simple fix is just about skipping that additional check for non existing kinds instead of breaking the cache initialization and so the manager one.