chore: Bump HBase to 2.6.3 (#310)

bump to 2.6.3

Author: adwk67

stacks/hdfs-hbase/hbase.yaml

@@ -5,7 +5,7 @@ metadata:
   name: hbase
 spec:
   image:
-    productVersion: 2.6.2
+    productVersion: 2.6.3
   clusterConfig:
     hdfsConfigMapName: hdfs
     zookeeperConfigMapName: hbase-znode