Update kube-state-metrics to v2.8.2 (gardener#8386)

The following images are updated:
- registry.k8s.io/kube-state-metrics/kube-state-metrics: v2.5.0 -> v2.8.2

Co-authored-by: Jeremy Rickards <jeremy.rickards@sap.com>

imagevector/images.yaml

@@ -214,7 +214,7 @@ images:
 - name: kube-state-metrics
   sourceRepository: github.com/kubernetes/kube-state-metrics
   repository: registry.k8s.io/kube-state-metrics/kube-state-metrics
-  tag: v2.5.0
+  tag: v2.8.2
   labels:
   - name: gardener.cloud/cve-categorisation
     value: