Update etcd from v3.5.10 to v3.5.12

* https://github.com/etcd-io/etcd/releases/tag/v3.5.11
* https://github.com/etcd-io/etcd/releases/tag/v3.5.12

azure/fedora-coreos/kubernetes/butane/controller.yaml

@@ -12,7 +12,7 @@ systemd:
         Wants=network-online.target
         After=network-online.target
         [Service]
-        Environment=ETCD_IMAGE=quay.io/coreos/etcd:v3.5.10
+        Environment=ETCD_IMAGE=quay.io/coreos/etcd:v3.5.12
         Type=exec
         ExecStartPre=/bin/mkdir -p /var/lib/etcd
         ExecStartPre=-/usr/bin/podman rm etcd

azure/flatcar-linux/kubernetes/butane/controller.yaml

@@ -11,7 +11,7 @@ systemd:
         Requires=docker.service
         After=docker.service
         [Service]
-        Environment=ETCD_IMAGE=quay.io/coreos/etcd:v3.5.10
+        Environment=ETCD_IMAGE=quay.io/coreos/etcd:v3.5.12
         ExecStartPre=/usr/bin/docker run -d \
           --name etcd \
           --network host \