update dotenv file for dev

packages/app/.env.development

@@ -12,10 +12,10 @@ MATHJAX=1
 MONGO_URI="mongodb://mongo:27017/growi"
 # REDIS_URI="http://redis:6379"
 # NCHAN_URI="http://nchan"
+USE_ELASTICSEARCH_V6=false
 ELASTICSEARCH_URI="http://elasticsearch:9200/growi"
 ELASTICSEARCH_REQUEST_TIMEOUT=15000
-#ELASTICSEARCH_REJECT_UNAUTHORIZED=false
-#USE_ELASTICSEARCH_V6=true
+ELASTICSEARCH_REJECT_UNAUTHORIZED=true
 HACKMD_URI="http://localhost:3010"
 HACKMD_URI_FOR_SERVER="http://hackmd:3000"
 OGP_URI="http://ogp:8088"