skipper: Update to version v0.22.1

Update 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper to version v0.22.1

Author: k8s-on-aws-manager-app[bot]

cluster/node-pools/master-default/userdata.yaml

@@ -262,7 +262,7 @@ write_files:
               name: admission-controller-kubeconfig
               readOnly: true
         - name: skipper-admission-webhook
-          image: 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper:v0.21.252
+          image: 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper:v0.22.1
           args:
             - webhook
             - --address=:9085
@@ -439,7 +439,7 @@ write_files:
             value: {{ .Cluster.ConfigItems.apiserver_business_partner_ids }}
 {{ end }}
         - name: skipper-proxy
-          image: 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper:v0.21.252
+          image: 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper:v0.22.1
           args:
           - skipper
           - -access-log-strip-query
@@ -490,7 +490,7 @@ write_files:
             name: ssl-certs-kubernetes
             readOnly: true
         - name: skipper-metrics
-          image: 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper:v0.21.252
+          image: 926694233939.dkr.ecr.eu-central-1.amazonaws.com/production_namespace/teapot/skipper:v0.22.1
           args:
           - skipper
           - -access-log-strip-query