It seems like the order of parameters in the CRD uninstall Job are incorrect.
```
arvindiyengar: ~/Rancher/charts/src/github.com/rancher/charts
$ kubectl apply -f charts/rancher-monitoring-crd/101.0.0+up19.0.3/crd-manifest
customresourcedefinition.apiextensions.k8s.io/alertmanagerconfigs.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/alertmanagers.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/podmonitors.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/probes.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/prometheuses.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/prometheusrules.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/servicemonitors.monitoring.coreos.com created
customresourcedefinition.apiextensions.k8s.io/thanosrulers.monitoring.coreos.com created
arvindiyengar: ~/Rancher/charts/src/github.com/rancher/charts
$ kubectl delete -Rf --ignore-not-found=true charts/rancher-monitoring-crd/101.0.0+up19.0.3/crd-manifest
the path "--ignore-not-found=true" does not exist
arguments in resource/name form may not have more than one slash
```
Since it is invalid to place `--ignore-not-found=true` after `-Rf`, I'm just switching the order to be successful.
* Remove all previous capabilities checks.
* Bump version from 3.0.1-rc6 to 4.0.0-rc1.
* Add new flag global.cattle.psp.enabled to control installation of PodSecurityPolicies.
* Add new validate-psp-install.yaml file to check whether PSPs can be installed.
* Update app-readme.md with PSP notice.
* Bump Kubernetes compatibility versions to < 1.26.0.