test: Reduce number of smoke tests by skipping Zookeeper 3.9.2 (#658)

Author: sbernauer

tests/test-definition.yaml

@@ -18,7 +18,7 @@ dimensions:
       - 3.3.6
   - name: zookeeper
     values:
-      - 3.9.2
+      # - 3.9.2 => The patch level bump is not worth it doubling the number of the smoke test (the number is already gigantic)
       - 3.9.3
   - name: zookeeper-latest
     values: