fix metadata

Author: deusebio

images/metadata.yaml

@@ -8,7 +8,7 @@ flavours:
       monitor SparkJob running on K8s cluster. It is an open source, end-to-end, 
       production ready data platform on top of cloud native technologies.
   kyuubi:
-    version: 1.9.0
+    version: 1.9.3
     image_description: |
       This is an OCI image that contains Kyuubi, fully integrated with Charmed
       Spark ecosystem and utilities.