fix(helm-chart): update helm release node-feature-discovery to 0.16.6

| datasource | package                | from   | to     |
| ---------- | ---------------------- | ------ | ------ |
| helm       | node-feature-discovery | 0.16.4 | 0.16.6 |

core/kube-system/node-feature-discovery/release.yaml

@@ -8,7 +8,7 @@ spec:
     spec:
       # renovate: registryUrl=https://kubernetes-sigs.github.io/node-feature-discovery/charts
       chart: node-feature-discovery
-      version: 0.16.4
+      version: 0.16.6
       sourceRef:
         kind: HelmRepository
         name: node-feature-discovery-charts