Update Helm repository from CI. (#6164)

Co-authored-by: Nk8s-ci-robot <k8s-ci-robot@users.noreply.github.com>

index.yaml

 apiVersion: v1
 entries:
   kubernetes-dashboard:
+  - apiVersion: v2
+    appVersion: 2.3.0
+    created: "2021-06-11T12:25:45.407920528Z"
+    dependencies:
+    - condition: metrics-server.enabled
+      name: metrics-server
+      repository: https://charts.helm.sh/stable/
+      version: 2.11.1
+    description: General-purpose web UI for Kubernetes clusters
+    digest: 132d4c8ed3de78af0f6d3b01c870a0bd29473cfe05c1b223fdc717f26706f49b
+    home: https://github.com/kubernetes/dashboard
+    icon: https://raw.githubusercontent.com/kubernetes/kubernetes/master/logo/logo.svg
+    keywords:
+    - kubernetes
+    - dashboard
+    kubeVersion: '>=1.14.0-0'
+    maintainers:
+    - email: cdesaintmartin@wiremind.fr
+      name: desaintmartin
+    name: kubernetes-dashboard
+    sources:
+    - https://github.com/kubernetes/dashboard
+    urls:
+    - kubernetes-dashboard-4.3.1.tgz
+    version: 4.3.1
   - apiVersion: v2
     appVersion: 2.3.0
     created: "2021-06-10T13:57:11.81955707Z"
@@ -551,4 +576,4 @@ entries:
     urls:
     - kubernetes-dashboard-2.0.1.tgz
     version: 2.0.1
-generated: "2021-06-10T13:57:11.817169591Z"
+generated: "2021-06-11T12:25:45.405504608Z"