Update the ZooKeeper version in the integration tests (#458)

Author: siegfriedweber

tests/test-definition.yaml

@@ -31,7 +31,7 @@ dimensions:
       - 3.3.6
   - name: zookeeper-latest
     values:
-      - 3.9.1
+      - 3.9.2
   - name: openshift
     values:
       - "false"