Removed "programmatic" and added warning

website/documentation/getting-started/observability/components.md

@@ -39,7 +39,11 @@ In order to access the Gardener provided dashboards, open the `Plutono` link pro
 
 ![access-plutono](./images/access-plutono.png)
 
-Programmatic access is still possible via the non-OIDC ingress using the credentials from the `<clustername>.monitoring` secret. It contains the HTTP basic auth credentials in base64-encoded form, as well as the Plutono ingress URL. The Prometheus URL can be derived from the Plutono URL by replacing the `gu` prefix with `p`.
+Access is still possible via the non-OIDC ingress using the credentials from the `<clustername>.monitoring` secret. It contains the HTTP basic auth credentials in base64-encoded form, as well as the Plutono ingress URL. The Prometheus URL can be derived from the Plutono URL by replacing the `gu` prefix with `p`.
+
+{{% alert color="warning" title="Warning" %}}
+While still available, basic authentication via username and password has been deprecated. you are advised to use OIDC based authentication.
+{{% /alert %}}
 
 ### Accessing the Dashboards