Change expected response code for aodh-api check

Related-Prod: PROD-16549

Change-Id: I7c2c9616034838f768adfd45814d7caea0706000
diff --git a/aodh/meta/telegraf.yml b/aodh/meta/telegraf.yml
index 695d1ba..6fe905c 100644
--- a/aodh/meta/telegraf.yml
+++ b/aodh/meta/telegraf.yml
@@ -5,5 +5,5 @@
     http_response:
       aodh-api:
         address: "http://{{ server.bind.host|replace('0.0.0.0', '127.0.0.1') }}:{{ server.bind.port }}/"
-        expected_code: 300
-{%- endif %}
\ No newline at end of file
+        expected_code: 401
+{%- endif %}