Update config.yml

Author: gkorland

.circleci/config.yml

@@ -8,7 +8,7 @@ jobs:
     docker:
       - image: circleci/openjdk:8u171-jdk
 
-      - image: redislabs/redisgraph:2.0-edge
+      - image: redislabs/redisgraph:edge
         port: 6379:6379
 
     working_directory: ~/repo