Upgrade Zookeeper (in Test Module) to 3.8.3

Resolves #2898

Author: garyrussell

build.gradle

@@ -76,7 +76,7 @@ ext {
 	springDataVersion = '2023.1.0-RC1'
 	springRetryVersion = '2.0.4'
 	springVersion = '6.1.0-SNAPSHOT'
-	zookeeperVersion = '3.6.4'
+	zookeeperVersion = '3.8.3'
 
 	idPrefix = 'kafka'