Fix rules window

jsonnet/kube-prometheus/prometheus-adapter/prometheus-adapter.libsonnet

@@ -54,7 +54,7 @@ local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
             },
             containerLabel: 'container'
           },
-          window: 5,
+          window: '5m',
         },
       }
     },

manifests/prometheus-adapter-configMap.yaml

@@ -26,7 +26,7 @@ data:
               "resource": "namespace"
             "pod":
               "resource": "pod"
-      "window": 5
+      "window": "5m"
 kind: ConfigMap
 metadata:
   name: adapter-config