Upgrade elasticsearch-rest-client to 7.4.1

Also update the test container to use this version for V7_4 tests.

Change-Id: I4d880b7c572bff12e5d1f50dd155a801275e02d9
diff --git a/WORKSPACE b/WORKSPACE
index faee532..e4534f2 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -949,8 +949,8 @@
 # and httpasyncclient as necessary.
 maven_jar(
     name = "elasticsearch-rest-client",
-    artifact = "org.elasticsearch.client:elasticsearch-rest-client:7.4.0",
-    sha1 = "481fedd31088ec6ba79a2aeffec3eccae4c0772b",
+    artifact = "org.elasticsearch.client:elasticsearch-rest-client:7.4.1",
+    sha1 = "b4e00ab47019103d69b6c9dcfdcbd3bfda00f86e",
 )
 
 maven_jar(
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 c3ab63f..6711388 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
@@ -61,7 +61,7 @@
       case V7_3:
         return "blacktop/elasticsearch:7.3.2";
       case V7_4:
-        return "blacktop/elasticsearch:7.4.0";
+        return "blacktop/elasticsearch:7.4.1";
     }
     throw new IllegalStateException("No tests for version: " + version.name());
   }