revert change to example standard deployment

Author: aidan-ogorman-dev

examples/standard/deployment.yaml

@@ -21,7 +21,7 @@ spec:
     spec:
       automountServiceAccountToken: true
       containers:
-      - image: k8s.gcr.io/kube-state-metrics/kube-state-metrics-amd64:v2.4.2
+      - image: k8s.gcr.io/kube-state-metrics/kube-state-metrics:v2.4.2
         livenessProbe:
           httpGet:
             path: /healthz