Elasticsearch: Update elasticsearch-rest-client to 7.0.1

Update the ElasticContainer test version accordingly.

Change-Id: I1162c241c1a76f8eaa341950ea91d361eeb627a4
diff --git a/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java b/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java
index 325fdd5..f8d8c57 100644
--- a/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java
+++ b/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java
@@ -51,7 +51,7 @@
       case V6_7:
         return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.7.1";
       case V7_0:
-        return "docker.elastic.co/elasticsearch/elasticsearch-oss:7.0.0";
+        return "docker.elastic.co/elasticsearch/elasticsearch-oss:7.0.1";
     }
     throw new IllegalStateException("No tests for version: " + version.name());
   }