addressing coderabbit comments

Author: syaseen-rh

modules/configuring-metric-based-autoscaling.adoc

@@ -41,7 +41,7 @@ spec:
           external:
             metric:
               backend: "prometheus"
-              serverAddress: "https://<thanos-service>.<monitoring-namespace>.svc.cluster.local:9092"
+              serverAddress: "https://<thanos-service>.<monitoring-namespace>.svc.cluster.local:9091"
               query: vllm:num_requests_waiting
             authenticationRef:
               name: openshift-monitoring-metrics-auth