fix(monitor): DaemonSet selector must match labels

The selector for monitor/telegraf chart was missing this matchLabels
map, and the labels not identical to our other charts. This was missed
somehow, and needs to be corrected in order to upgrade K8s to v1.16,
(and/or Helm to v2.15.)

Author: Kingdon Barrett

charts/monitor/charts/telegraf/templates/monitor-telegraf-daemon.yaml

@@ -11,9 +11,15 @@ spec:
   updateStrategy:
     type: RollingUpdate
   {{- end }}
+  selector:
+    matchLabels:
+      app: deis-monitor-telegraf
+      heritage: deis
   template:
     metadata:
+      name: deis-monitor-telegraf
       labels:
+        heritage: deis
         app: deis-monitor-telegraf
     spec:
       serviceAccount: deis-monitor-telegraf