fix(helm): update chart node-feature-discovery to 0.15.2

| datasource | package                | from   | to     |
| ---------- | ---------------------- | ------ | ------ |
| helm       | node-feature-discovery | 0.15.1 | 0.15.2 |

kubernetes/main/apps/kube-system/node-feature-discovery/app/helmrelease.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: node-feature-discovery
-      version: 0.15.1
+      version: 0.15.2
       sourceRef:
         kind: HelmRepository
         name: kubernetes-sigs-nfd