fixing pomerium traefik sample (#3290)

replace policy by routes

examples/traefik-ingress/values/pomerium.yaml

@@ -10,11 +10,14 @@ config:
   sharedSecret: R0+XRoGVpcoi4PfB8tMlvnrS5XUasO+D1frAEdYcYjs=
   cookieSecret: FLPCOQKigK5EQnyXlBhchl5fgzNKqi3ubtvOGt477Dg=
   generateTLS: true
-  policy:
+  routes:
     - from: https://hello.localhost.pomerium.io
       to: http://hello-nginx
-      allowed_domains:
-        - gmail.com
+      policy:
+        - allow:
+            or:
+              - domain:
+                  is: gmail.com
 ingress:
   annotations:
     traefik.ingress.kubernetes.io/router.tls: "true"