Patch etcdbrctl version (#946)

* Update acre.yaml

Change etcdbrctl to v0.15.1

* Update statefulset-etcd.yaml

Updated command parameters to what v15 of etcdbrctl requires

acre.yaml

@@ -37,7 +37,7 @@ landscape:
         image_tag: "v3.3.13"
       backup_restore:
         image_repo: eu.gcr.io/gardener-project/gardener/etcdbrctl
-        image_tag: "0.6.4"
+        image_tag: "v0.15.1"
     gardener:
       <<: (( merge ))
       repo: "https://github.com/gardener/gardener.git"

components/etcd/cluster/chart/templates/statefulset-etcd.yaml

@@ -112,8 +112,8 @@ spec:
         - --insecure-transport=false
         - --insecure-skip-tls-verify=false
         - --endpoints=https://{{ .Values.name }}-0:2379
-        - --etcd-connection-timeout=300
-        - --delta-snapshot-period-seconds=300
+        - --etcd-connection-timeout=300s
+        - --delta-snapshot-period=300s
         image: {{ index .Values.images "etcd-backup-restore" }}
         imagePullPolicy: IfNotPresent
         ports: