Merge pull request kubernetes-sigs#7190 from sbueringer/pr-tilt-support-v1.25

🌱 hack/observability: disable PSP for Grafana to support Kubernetes v1.25

Author: k8s-ci-robot

hack/observability/grafana/values.yaml

@@ -29,3 +29,8 @@ datasources:
 # Disable grafana test framework
 testFramework:
   enabled: false
+
+# Disable PSP because PSPs have been dropped with
+# Kubernetes v1.25
+rbac:
+  pspEnabled: false