Fixed a boltkit test

Previously `RoundRobinArray`s in a routing table were recreated on
every rediscovery. This caused round robin index to be reset to zero.
It is no longer true because `RoundRobinLoadBalancingStrategy` does
not reset indexes.

Author: lutovich

test/v1/routing.driver.boltkit.it.js

@@ -233,7 +233,7 @@ describe('routing driver', () => {
     const seedServer = kit.start('./test/resources/boltkit/short_ttl.script', 9999);
     const nextRouter = kit.start('./test/resources/boltkit/acquire_endpoints.script', 9003);
     const readServer1 = kit.start('./test/resources/boltkit/read_server.script', 9004);
-    const readServer2 = kit.start('./test/resources/boltkit/read_server.script', 9005);
+    const readServer2 = kit.start('./test/resources/boltkit/read_server.script', 9006);
 
     kit.run(() => {
       const driver = newDriver("bolt+routing://127.0.0.1:9999");