[Java] rename config ray.redis.address to ray.address (#10772)

Resolved Conflicts:
        java/test.sh

doc/source/walkthrough.rst

@@ -48,7 +48,7 @@ You can start Ray on a single machine by adding this to your code.
 
       public static void main(String[] args) {
         // Start Ray runtime. If you're connecting to an existing cluster, you can set
-        // the `-Dray.redis.address=<cluster-address>` java system property.
+        // the `-Dray.address=<cluster-address>` java system property.
         Ray.init();
         ...
       }