fix(k8s): avoid normalization issue when installing nginx controller

This is a temporary fix before we manage to fully normalize manifests while
diffing, i.e. when server-side apply is widely available for all/most
resources.

garden-service/static/kubernetes/system/ingress-controller/garden.yml

@@ -14,5 +14,6 @@ module:
       kind: DaemonSet
       daemonset:
         useHostPort: true
+      minReadySeconds: 1
     defaultBackend:
       enabled: false