add with-elasticsearch for directory-server (#551)

Signed-off-by: Etienne LESOT <[email protected]>

Author: EtienneLt

k8s/resources/study/directory-server-deployment.yaml

@@ -8,6 +8,7 @@ metadata:
     app.kubernetes.io/component: gridsuite-springboot
     gridsuite.org/springboot-with-database: "true"
     gridsuite.org/springboot-with-rabbitmq: "true"
+    gridsuite.org/springboot-with-elasticsearch: "true"
   annotations:
     gridsuite.org/size: springnative-xs
 spec: