[autotest] Update test metadb server

The old server needs to be upgraded.

BUG=None
TEST=local run scheduler, make sure the data is uploaded.

Change-Id: I2989fc68f7d0ffafdd850b50de957e52c6c37eb9
Reviewed-on: https://chromium-review.googlesource.com/328102
Commit-Ready: Dan Shi <dshi@google.com>
Tested-by: Dan Shi <dshi@google.com>
Reviewed-by: Kevin Cheng <kevcheng@chromium.org>
Reviewed-by: Dan Shi <dshi@google.com>
diff --git a/global_config.ini b/global_config.ini
index 08cf065..2290d73 100644
--- a/global_config.ini
+++ b/global_config.ini
@@ -294,9 +294,9 @@
 test_instance: chromeos-autotest.cbf
 extra_servers: chromeos-mcp
 
-# ES_HOST's hostname is chromeos-lab-graphite.cbf.corp.google.com
+# ES_HOST's hostname is chromeos-metadb-test.cbf.corp.google.com
 # This es server is used for testing purposes only.
-ES_HOST: 172.25.61.45
+ES_HOST: 172.25.65.90
 ES_PORT: 9200
 ES_UDP_PORT: 9700
 ES_USE_HTTP: False